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Morphological changes in neuromuscular junctions during exercise
Author(s) -
PalaciosPrü Ernesto,
Mendoza R. V.,
Palacios L.,
Colasante C.
Publication year - 1983
Publication title -
journal of neuroscience research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.72
H-Index - 160
eISSN - 1097-4547
pISSN - 0360-4012
DOI - 10.1002/jnr.490090403
Subject(s) - neuromuscular junction , synaptic vesicle , branching (polymer chemistry) , vesicle , free nerve ending , anatomy , neuroscience , biophysics , chemistry , biology , membrane , biochemistry , organic chemistry
Long lasting exercise produces several morphological changes in teleostean neuromuscular junctions (NJs), consisting of progressive synaptic vesicles (SVs) depletion and lamellar branching of the nerve endings. Exercised fishes kept swimming during 1 hr against a 3.51/min flow of oxygenated water in spite of the fact that the number of SVs was reduced in about 70% after 10 min of exercise. This observation indicates that the SVs formation fails to restore their original number and consequently, under such circumstances, the transmitter release may occur by a different mechanism.