𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Intrinsic rhythmic contractions in insect skeletal muscle

✍ Scribed by Hoyle, Graham ;O'Shea, Michael

Book ID
102335209
Publisher
John Wiley and Sons
Year
1974
Tongue
English
Weight
243 KB
Volume
189
Category
Article
ISSN
0022-104X

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✦ Synopsis

Abstract

A constant slow rhythm of contraction and relaxation has been discovered in the extensor tibiae (jumping muscle) of saltatory orthopterans. The rhythm is present in the intact insect and persist in the isolated leg, but is abolished when the leg is perfused with saline. The amplitudes and durations of contractions and also the intervals between them, are subject to central nervous modulation. The rhythm may serve to exercise muscle fibers and to promote movement.

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