Buckley GA, Heaton J. A quantitative study of cholinesterase in myoneural junctions from rat and guinea-pig extraocular muscles.
J Physiol 1968;
199:743-9. [PMID:
4179640 PMCID:
PMC1365368 DOI:
10.1113/jphysiol.1968.sp008676]
[Citation(s) in RCA: 37] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
1. Cholinesterase staining of rat and guinea-pig extraocular muscle shows focally and multiply innervated fibres.2. The distribution of cholinesterase activities in the populations of focal endings (from singly innervated fibres) and fine motor endings (from multiply innervated fibres) was determined by a sensitive radiochemical method.3. Focal endings had a greater cholinesterase activity than fine motor endings.4. It is suggested that this difference in enzyme activities is related to the functional difference between twitch and slow fibres in extraocular muscle.
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