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Ganz JC. Evolution of understanding. PROGRESS IN BRAIN RESEARCH 2024; 285:95-113. [PMID: 38705720 DOI: 10.1016/bs.pbr.2024.02.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
From the time of Hippocrates to the early 19th century, knowledge advanced but that was an uneven process. Anatomy was basically defined by Galen and remained cast in stone until the early 16th century. Neuroanatomy was described by Galen but had little practical value, as brain surgery was not possible. The anatomy of the cranium was known and was largely correct. Care was taken to avoid the frontal air sinuses and the venous sinuses and the temporal region. The role of the brain in consciousness was not understood. It was considered the seat of the soul but there was a lack of understanding that damage to it could induce clinical symptoms such as stupor or paralysis. These were variously attributed to injuries to the meninges or the bone. This error was finally corrected in the 18th century when the brain was identified as responsible for much of the clinical disturbance following cranial trauma. All awareness that post traumatic neurological deficit was contralateral was ignored until the late 18th century, although several authors noted it. Likewise, the presence of CSF had to wait until the 18th century until it was recognized. Fissures were treated with trepanation, because of a perceived risk of infection developing between the bone and the dura. Depressed fracture fragments were elevated, replaced, or removed according to the details of the injury. Finally, for centuries surgeons blocked patients ears to reduce the sound of drilling, despite the fact that such a blocking would amplify the noise.
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Affiliation(s)
- Jeremy C Ganz
- Department of Neurosurgery, Haukeland University Hospital, Bergen, Norway.
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2
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Ghosh SK, Bhattacharjee S. Public human dissection and societal connect of anatomical sciences: A glorious association in the past but ethically forbidden practice at present. ANATOMICAL SCIENCES EDUCATION 2024. [PMID: 38576065 DOI: 10.1002/ase.2413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 02/07/2024] [Accepted: 03/11/2024] [Indexed: 04/06/2024]
Abstract
Under the futuristic vision of anatomical sciences, a strong societal connection is mandatory. The anatomical practice experienced robust societal participation through public human dissection from the 16th century onward. With a perspective to explore the intersection of spirituality with anatomy, the present study analyzed this momentous period. From a spiritual perspective, the study also reflects on two relevant but presently uncoupled entities of public human dissection and societal connection through the prism of current regulations. Strong representation from the general public during public human dissection was primarily driven by spiritual proclivity and an endorsement from religious authorities. To regulate large gatherings and maintain academic sanctity, anatomical theaters emerged as dedicated spaces for such a merger. With time and growing financial support, the theaters transformed from temporary structures to elaborate architectural marvels, further propelling already robust societal connections associated with the practice. Nevertheless, a confluence of multiple factors led to the violation of spiritual principles and a consequent decrease in societal participation from the early 18th century, eventually culminating in the demise of such spectacle. Presently, public human dissection-when done-is mostly conducted for commercial gains and in contravention of ethical norms. It is against the essence of spirituality and harbors a bleak prospect for societal connection. Contrastingly, measures adopted to promote societal participation (mostly related to body donation) were quite effective and followed the principles of spirituality. Societal connections served anatomy in the past and can lead to its advancement if approached through a righteous path.
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Affiliation(s)
- Sanjib Kumar Ghosh
- Department of Anatomy, All India Institute of Medical Sciences, Patna, India
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Hadie SNH, Gasmalla HEE, Wadi MM, Zainul Abidin MA, Yusoff MSB. From generosity to gratitude: Exploring Islamic views on body donation, human dissection, and honoring the gift of life. ANATOMICAL SCIENCES EDUCATION 2024. [PMID: 38332675 DOI: 10.1002/ase.2393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 01/24/2024] [Accepted: 01/26/2024] [Indexed: 02/10/2024]
Abstract
Human dissection is an ancient pedagogical method that is still relevant in modern anatomy curricula. The body procurement process for dissection purposes has undergone significant evolution from the medieval era until now, whereby body donation has become the main source for human bodies in medical education. The appreciation ceremony for body donors is an excellent way to promote a body donation program, whereby both dissection and appreciation ceremonies are effective in inculcating professional behaviors and altruism among medical students. Despite the benefits of dissection and such ceremonies, conflicting ideas about the acceptability of these methods exist among Muslim scholars and students. Hence, this article provides a theological Islamic interpretation of human dissection, body donation, and appreciation ceremonies from four sources of Islamic law-the Qur'an, Hadith, Idjmaa, and Qiyas-to justify Muslims' involvement in the aforementioned. It is important to note that the fundamentals of Islam are submission to the will of the one and only God, Allah Subhanahu wa ta'ala (SWT) and recognition of Prophet Muhamad (peace be upon him) as the last messenger of God. Therefore, the actions of a Muslim are strongly based on faith and virtue.
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Affiliation(s)
- Siti Nurma Hanim Hadie
- Department of Anatomy, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | | | - Majed M Wadi
- Medical Education Department, College of Medicine, Qassim University, Buraidah, Saudi Arabia
| | - Mohd Asri Zainul Abidin
- Jabatan Mufti Negeri Perlis, Kangar, Malaysia
- School of Humanities, Universiti Sains Malaysia, Penang, Malaysia
| | - Muhamad Saiful Bahri Yusoff
- Department of Medical Education, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Malaysia
- Centre for the Development of Academic Excellence, Universiti Sains Malaysia, Penang, Malaysia
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Forgotten Pioneers of Plastic and Reconstructive Surgery During the Medieval Period. J Craniofac Surg 2023; 34:1144-1146. [PMID: 36727967 DOI: 10.1097/scs.0000000000009176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 10/04/2022] [Indexed: 02/03/2023] Open
Abstract
Sushruta who lived in India sometime between 1000 and 800 BC is traditionally recognized for being the "Father of Plastic Surgery." However, "plastic surgery" has been performed much earlier in antiquity, with the earliest origins of primitive procedures dating back to 1600 BC in Ancient Egypt on the southeastern shores of the Mediterranean. Some centuries later, simple plastic cosmetic surgeries were performed, as well on the Northern Mediterranean shores in ancient Greece and Rome to repair damaged parts caused by war mutilation, punishment, or humiliation. Afterward, there has been a historical gap moving rapidly from the Greco-Roman period to the European Renaissance. Ignoring valuable contributions made by surgeons of the Medieval period, like Albucasis and Avicenna, has denied scholars of the Arabic Golden Age that bridged the eastern and western cultures recognition. In fact, all Mediterranean populations, albeit not together or simultaneously, have participated in the development of plastic and reconstructive surgery art and science. All have made valuable innovations, together with others, which cumulatively have resulted in progressive buildup of knowledge and technical skills.
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Meyer ER, Cui D. Using Stereoscopic Virtual Presentation for Clinical Anatomy Instruction and Procedural Training in Medical Education. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1431:145-160. [PMID: 37644291 DOI: 10.1007/978-3-031-36727-4_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
This chapter begins by exploring the current landscape of virtual and augmented reality technologies in a post-pandemic world and asserting the importance of virtual technologies that improve students' learning outcomes while also reducing costs. Next, the chapter describes clinical anatomy instruction concepts in medical education, including applied anatomy content knowledge, pedagogical anatomy content knowledge, and virtual stereoscopic visualization studies that exemplify these concept areas, respectively. The chapter then explores the concept of procedural training with a specific emphasis on virtual stereoscopic anatomy visualization studies that exemplify or have implications for procedural training in medical education. Subsequently, the chapter discusses the benefits and challenges as well as the potential future positive and negative implications of virtual stereoscopic visualizations in medical education before finally concluding with some pensive considerations for the present and future of anatomy education and training using virtual technologies.
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Affiliation(s)
- Edgar R Meyer
- Department of Advanced Biomedical Education, University of Mississippi Medical Center, Jackson, MS, USA.
| | - Dongmei Cui
- Department of Advanced Biomedical Education, University of Mississippi Medical Center, Jackson, MS, USA
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Wickramasinghe N, Thompson BR, Xiao J. The Opportunities and Challenges of Digital Anatomy for Medical Sciences: Narrative Review. JMIR MEDICAL EDUCATION 2022; 8:e34687. [PMID: 35594064 PMCID: PMC9166657 DOI: 10.2196/34687] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 01/23/2022] [Accepted: 03/25/2022] [Indexed: 05/09/2023]
Abstract
BACKGROUND Anatomy has been the cornerstone of medical education for centuries. However, given the advances in the Internet of Things, this landscape has been augmented in the past decade, shifting toward a greater focus on adopting digital technologies. Digital anatomy is emerging as a new discipline that represents an opportunity to embrace advances in digital health technologies and apply them to the domain of modern medical sciences. Notably, the use of augmented or mixed and virtual reality as well as mobile and platforms and 3D printing in modern anatomy has dramatically increased in the last 5 years. OBJECTIVE This review aims to outline the emerging area of digital anatomy and summarize opportunities and challenges for incorporating digital anatomy in medical science education and practices. METHODS Literature searches were performed using the PubMed, Embase, and MEDLINE bibliographic databases for research articles published between January 2005 and June 2021 (inclusive). Out of the 4650 articles, 651 (14%) were advanced to full-text screening and 77 (1.7%) were eligible for inclusion in the narrative review. We performed a Strength, Weakness, Opportunity, and Threat (SWOT) analysis to evaluate the role that digital anatomy plays in both the learning and teaching of medicine and health sciences as well as its practice. RESULTS Digital anatomy has not only revolutionized undergraduate anatomy education via 3D reconstruction of the human body but is shifting the paradigm of pre- and vocational training for medical professionals via digital simulation, advancing health care. Importantly, it was noted that digital anatomy not only benefits in situ real time clinical practice but also has many advantages for learning and teaching clinicians at multiple levels. Using the SWOT analysis, we described strengths and opportunities that together serve to underscore the benefits of embracing digital anatomy, in particular the areas for collaboration and medical advances. The SWOT analysis also identified a few weaknesses associated with digital anatomy, which are primarily related to the fact that the current reach and range of applications for digital anatomy are very limited owing to its nascent nature. Furthermore, threats are limited to technical aspects such as hardware and software issues. CONCLUSIONS This review highlights the advances in digital health and Health 4.0 in key areas of digital anatomy analytics. The continuous evolution of digital technologies will increase their ability to reinforce anatomy knowledge and advance clinical practice. However, digital anatomy education should not be viewed as a simple technical conversion and needs an explicit pedagogical framework. This review will be a valuable asset for educators and researchers to incorporate digital anatomy into the learning and teaching of medical sciences and their practice.
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Affiliation(s)
- Nilmini Wickramasinghe
- School of Health Sciences, Swinburne University of Technology, Victoria, Australia
- Epworth Healthcare, Melbourne, Australia
| | - Bruce R Thompson
- School of Health Sciences, Swinburne University of Technology, Victoria, Australia
- Alfred Health, Melbourne, Australia
- School of Health Sciences, University of Melbourne, Parkville, Australia
| | - Junhua Xiao
- School of Health Sciences, Swinburne University of Technology, Victoria, Australia
- School of Allied Health, La Trobe University, Bundoora, Australia
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Ghosh SK. The evolution of epistemological methodologies in anatomy: From antiquity to modern times. Anat Rec (Hoboken) 2021; 305:803-817. [PMID: 34558798 DOI: 10.1002/ar.24781] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/14/2021] [Accepted: 08/18/2021] [Indexed: 12/31/2022]
Abstract
Present day scenario regarding epistemological methods in anatomy is in sharp contrast to the situation during ancient period. This study aimed to explore the evolution of epistemological methodologies in anatomy across centuries. In ancient times Egyptian embalmers acquired anatomical knowledge from handling human bodies and likewise anatomical studies in India involved human dissection. Ancient Greeks used theological principles-based methods, animal dissection and human dissection in practice of anatomy. Human dissection was also practiced in ancient China for gaining anatomical knowledge. Prohibition of human dissection led to use of animal dissection in ancient Rome and the trend continued in Europe through Middle Ages. Epistemological methods used by Muslim scholars during Middle Ages are not clearly chronicled. Human dissection returned as primary epistemological method in Renaissance Europe and empirical methods were reinstated after ancient period in human dissection during 16th century. The situation further improved with introduction of pragmatic experiment based approach during 17th century and autopsy-based methods during 18th century. Advances in anatomical knowledge continued with advent of microscope-based methods and emergence of anatomical sections in practice of human dissection in 19th century. Introduction of human observational studies, medical imaging, and molecular methods presented more options in terms of epistemological methods for investigating the human body during 20th century. Onset of 21st century has witnessed dominance of technology-based methods in anatomy. Limited emphasis on ethics in epistemological methodologies since antiquity is a dark aspect of otherwise an eventful evolutionary journey but recent developments are in positive direction.
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Affiliation(s)
- Sanjib Kumar Ghosh
- Department of Anatomy, All India Institute of Medical Sciences, Patna, Bihar, India
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Brenna CTA. Bygone theatres of events: A history of human anatomy and dissection. Anat Rec (Hoboken) 2021; 305:788-802. [PMID: 34551186 DOI: 10.1002/ar.24764] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/21/2021] [Accepted: 08/02/2021] [Indexed: 12/12/2022]
Abstract
Over the last four millennia, the discipline of anatomy and its relationships with medicine and society have evolved dramatically. Human dissection, the perennial tool for anatomical discovery and education, has both guided this evolution and matured alongside it. Soon after the first cadaveric dissections recorded in ancient Greece, China, India, and Persia, clear endorsements of its practice fell largely silent in the anatomical record for 1,500 years before reappearing in Europe at the dawn of the Renaissance. Between the 13th and 18th centuries CE, the performance of anatomical dissection became a popular form of education and public entertainment, and the demand for human cadavers steadily increased among European anatomical schools while supply remained limited by legal statute. This gave rise to an informal group of amateur and professional body snatchers called the Resurrectionists and, later, inspired the Anatomy Act of 1832 CE. In the 20th and 21st centuries CE, voluntary body bequeathal programs have enabled the practice of human dissection to continue in academic centers as a cornerstone of anatomical education, now with a newfound focus on the development of affective skills. This article provides an abridged account of anatomy's development, highlighting key moments in its growth, the valuable contributions of many different societies to the discipline, and the important roles of several luminary anatomists of antiquity. Within the broader context of this history, it offers an overview of anatomical dissection's evocative past, spanning from its inception to its present-day practice.
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Affiliation(s)
- Connor T A Brenna
- Department of Anesthesiology & Pain Medicine, University of Toronto, Toronto, Ontario, Canada
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Ghosh SK, Priya A, Narayan RK. Evolution of the fabric of cardiovascular science: Saga of an enduring process of refinement. Ann Cardiol Angeiol (Paris) 2021; 70:220-230. [PMID: 34274111 DOI: 10.1016/j.ancard.2021.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 06/08/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND The core elements of cardiovascular science have been established by scholarly pursuits of numerous scientists across centuries. In this article, we have tried to trace the evolutionary journey of cardiovascular science from a rudimentary form in ancient period to a robust scientific discipline in modern times. METHODS A literature search of relevant, peer-reviewed, published articles was undertaken from indexed databases (Medline & Pubmed, Scopus, Embase, CINAHL Plus, Web of Science and Google Scholar). RESULTS Cardiovascular science has its roots in antiquity, when Greek scholars mostly relied on philosophical thoughts and ancient texts. This was followed by addition of few structural details to the theory of circulation by Galen based on animal dissection. Arab scholar Ibn al-Nafis provided new insights regarding circulation pathway in humans. Nevertheless, an erroneous concept prevailed into the onset of European Renaissance. Even with legalization of human dissection, little headway could be made till sixteenth century due to persistent reliance of anatomists on ancient Galenic principles. During seventeenth century, the circulatory pathway (as we know it today) was established due to significant contributions from scholars like Harvey and Malpighi. Their efforts were based on findings from experiments and logical conclusions. Eighteenth century witnessed the emergence of autopsy based methods which led to valuable contributions from Vieussens, Thebesius, Morgagni and Hunter regarding normal and pathologic anatomy of cardiovascular system. With structural details mostly established, researchers during nineteenth century focussed on innovations in diagnostic methods based on human experiments. Further development of advanced human experiment models during twentieth century led to emergence of contemporary treatment methods for various cardiac conditions. In the twenty-first century, cardiovascular science is undergoing comprehensive progress at an exponential rate due to technological advances. CONCLUSION The evolutionary journey of cardiovascular science as a discipline across centuries has been intriguing and eventful.
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Affiliation(s)
- S K Ghosh
- Department of Anatomy, All India Institute of Medical Sciences, Phulwarisharif, Patna, Bihar, India.
| | - A Priya
- Department of Anatomy, All India Institute of Medical Sciences, Phulwarisharif, Patna, Bihar, India
| | - R K Narayan
- Department of Anatomy, All India Institute of Medical Sciences, Phulwarisharif, Patna, Bihar, India
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Basma J, Anagnostopoulos C, El-Khoury S, Courban A, Gienapp AJ, Arnautovic K. Legacy of Syriac-Aramaic Scholars in Transmitting Neurosurgical Knowledge Between Antiquity and the Middle Ages. World Neurosurg 2021; 152:71-79. [PMID: 34133992 DOI: 10.1016/j.wneu.2021.06.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 06/07/2021] [Indexed: 11/26/2022]
Abstract
The link between ancient Greek medicine and the Arabic translation period in the 9th century cannot be understood without studying the contributions of Syriac scholars. With their mastery of Greek and the related Semitic languages of Syriac and Arabic, they initiated a scientific translation process with methods that prevail to this day. In this paper, we reviewed Hunayn Ibn Isshaq's Ten Treatises on the Eye to elucidate the original contributions of the Syriac physicians to the field of neurologic surgery. We analyzed the oldest known diagram of orbital anatomy along with Hunayn's genuine ideas on the optic nerve anatomy and pathology, optic chiasm, afferent pupillary reflex, and papilledema and venous congestion. We also reviewed the neurosurgical elements found in the Syriac Book of Medicines including the thought process in localizing neurologic deficits based on clinical experience and anatomic dissections and the earliest recorded description of brachial plexus pathology.
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Affiliation(s)
- Jaafar Basma
- Department of Neurosurgery, University of Tennessee Health Science Center, Memphis, Tennessee, USA.
| | | | - Sylvain El-Khoury
- Department of Ophthalmology, University Medical Centre, Mainz, Germany
| | - Antoine Courban
- Department of Anatomy and Epistemology, Université Saint-Joseph, Beirut, Lebanon
| | - Andrew J Gienapp
- Department of Neurosurgery, University of Tennessee Health Science Center, Memphis, Tennessee, USA; Neuroscience Institute, Le Bonheur Children's Hospital, Memphis, Tennessee, USA
| | - Kenan Arnautovic
- Department of Neurosurgery, University of Tennessee Health Science Center, Memphis, Tennessee, USA; Semmes-Murphey Clinic, Memphis, Tennessee, USA
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Shaw V, Diogo R, Winder IC. Hiding in Plain Sight-ancient Chinese anatomy. Anat Rec (Hoboken) 2020; 305:1201-1214. [PMID: 32875736 DOI: 10.1002/ar.24503] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 05/23/2020] [Accepted: 05/29/2020] [Indexed: 11/09/2022]
Abstract
For thousands of years, scientists have studied human anatomy by dissecting bodies. Our knowledge of their findings is limited, however, both by the subsequent loss of many of the oldest texts, and by a tendency toward a Eurocentric perspective in medicine. As a discipline, anatomy tends to be much more familiar with ancient Greek texts than with those from India, China, or Persia. Here, we show that the Mawangdui medical texts, entombed in the Mawangdui burial site in Changsha, China 168 BCE, are the oldest surviving anatomical atlas in the world. These medical texts both predate and inform the later acupuncture texts which have been the foundation for acupuncture practice in the subsequent two millennia. The skills necessary to interpret them are diverse, requiring the researcher firstly to read the original Chinese, and secondly to perform the anatomical investigations that allow a re-viewing of the structures that the texts refer to. Acupuncture meridians are considered to be esoteric in nature, but these texts are clearly descriptions of the physical body. As such, they represent a previously hidden chapter in the history of anatomy, and a new perspective on acupuncture.
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Affiliation(s)
- Vivien Shaw
- School of Medical Sciences, Bangor University, Bangor, Wales
| | - Rui Diogo
- Department of Anatomy, Howard University, Washington, District of Columbia, USA
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Ghosh SK, Narayan RK. Anatomy of nervous system and emergence of neuroscience: A chronological journey across centuries. Morphologie 2020; 104:267-279. [PMID: 32534997 DOI: 10.1016/j.morpho.2020.05.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/26/2020] [Accepted: 05/27/2020] [Indexed: 10/24/2022]
Abstract
Scholars began exploring anatomy of nervous system from ancient times; however, considerable progress could only be made during the European Renaissance from the 14th century onwards. The present study aimed to document significant discoveries in this context in chronological order to establish the cascading pattern of advancement in knowledge. The findings of Leonardo da Vinci (15th century), Vesalius (16th century) and their contemporaries, which were based on macroscopic dissection, helped to break the shackles of misconceptions in hypotheses prevalent from the time of Galen. However, very little headway could be achieved beyond superficial descriptions. Willis (17th century), through his experimental studies, provided the much-needed impetus and his discoveries put the study of brain and nervous system on their modern footing. In the following years, prominent researchers through their observations based on the use of microscopy and advanced histological techniques (prevalent after invention of microtome) contributed towards significant discoveries related to the morphological details of different components of nervous system. Such scientific activities culminated in remarkable advancements by the middle of 19th century. The advent of Golgi's staining technique and subsequent histological exploits of Cajal (late 19th century) established the neuron theory, which is central to comprehending the functioning of nervous system. Availability of Golgi's staining technique remarkably contributed in detailing the anatomical structure of nervous system at microscopic level. Access to structural details pertaining to living anatomy (late 20th century) and focus on findings at the molecular level by turn of 21st century have firmly established neuroscience as a sovereign academic discipline.
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Affiliation(s)
- S K Ghosh
- Department of Anatomy, All India Institute of Medical Sciences, Phulwarisharif, Patna, 801507 Bihar, India.
| | - R K Narayan
- Department of Anatomy, All India Institute of Medical Sciences, Phulwarisharif, Patna, 801507 Bihar, India
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Abdala V, Vera MC, Amador LI, Fontanarrosa G, Fratani J, Ponssa ML. Sesamoids in tetrapods: the origin of new skeletal morphologies. Biol Rev Camb Philos Soc 2019; 94:2011-2032. [PMID: 31359608 DOI: 10.1111/brv.12546] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 06/24/2019] [Accepted: 06/26/2019] [Indexed: 02/06/2023]
Abstract
Along with supernumerary bones, sesamoids, defined as any organized intratendinous/intraligamentous structure, including those composed of fibrocartilage, adjacent to an articulation or joint, have been frequently considered as enigmatic structures associated with the joints of the skeletal system of vertebrates. This review allows us to propose a dynamic model to account for part of skeletal phenotypic diversity: during evolution, sesamoids can become displaced, attaching to and detaching from the long bone epiphyses and diaphysis. Epiphyses, apophyses and detached sesamoids are able to transform into each other, contributing to the phenotypic variability of the tetrapod skeleton. This dynamic model is a new paradigm to delineate the contribution of sesamoids to skeletal diversity. Herein, we first present a historical approach to the study of sesamoids, discussing the genetic versus epigenetic theories of their genesis and growth. Second, we construct a dynamic model. Third, we present a summary of literature on sesamoids of the main groups of tetrapods, including veterinary and human clinical contributions, which are the best-studied aspects of sesamoids in recent decades. Finally, we discuss the identity of certain structures that have been labelled as sesamoids despite insufficient formal testing of homology. We also propose a new definition to help the identification of sesamoids in general. This review is particularly timely, given the recent increasing interest and research activity into the developmental biology and mechanics of sesamoids. With this updated and integrative discussion, we hope to pave the way to improve the understanding of sesamoid biology and evolution.
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Affiliation(s)
- Virginia Abdala
- Cátedra de Biología General, Facultad de Ciencias Naturales e IML, UNT, Miguel Lillo 205, 4000, San Miguel de Tucumán, Argentina.,Instituto de Biodiversidad Neotropical, CONICET- UNT, Horco Molle s/n Yerba Buena, 4107, Tucumán, Argentina
| | - Miriam C Vera
- Instituto de Biología Subtropical (CONICET-UNaM), Facultad de Ciencias Exactas Químicas y Naturales, Universidad Nacional de Misiones, Félix de Azara 1552, CPA N3300LQF, Posadas, Argentina
| | - Lucila I Amador
- Unidad Ejecutora Lillo, FML-CONICET, Miguel Lillo 251, 4000, San Miguel de Tucumán, Argentina
| | - Gabriela Fontanarrosa
- Instituto de Biodiversidad Neotropical, CONICET- UNT, Horco Molle s/n Yerba Buena, 4107, Tucumán, Argentina
| | - Jessica Fratani
- Unidad Ejecutora Lillo, FML-CONICET, Miguel Lillo 251, 4000, San Miguel de Tucumán, Argentina
| | - María L Ponssa
- Unidad Ejecutora Lillo, FML-CONICET, Miguel Lillo 251, 4000, San Miguel de Tucumán, Argentina
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Diogo R. Links between the discovery of primates and anatomical comparisons with humans, the chain of being, our place in nature, and racism. J Morphol 2017; 279:472-493. [DOI: 10.1002/jmor.20783] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 11/08/2017] [Accepted: 11/12/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Rui Diogo
- Department of Anatomy; Howard University College of Medicine, Numa Adams Building, Room 1001, 520 W St. NW; Washington DC 20059
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Laitman JT, Albertine KH. "Something There Is That Doesn't Love a Wall," and Other Lessons for Science. Anat Rec (Hoboken) 2017; 300:983-985. [PMID: 28383170 DOI: 10.1002/ar.23604] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 04/03/2017] [Indexed: 11/07/2022]
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