A Bifunctional Single Motor Axon System of a Crustacean Muscle

Autor: C. A. G. Wiersma
Rok vydání: 1951
Předmět:
Zdroj: Journal of Experimental Biology. 28:13-21
ISSN: 1477-9145
0022-0949
DOI: 10.1242/jeb.28.1.13
Popis: It is shown that the opener muscle of the hermit crab, Eupagurus bernhardus L., receives a single motor axon. Stimulation of this axon results, when appropriate stimuli are used, in two types of contractions comparable with the fast and slow contractions of doubly motor-innervated crustacean muscles. The theoretical implications of this finding are discussed and a hypothesis offered to explain the mechanism which makes the two contraction types possible. The physiological and anatomical features of the innervation of the four most distal muscles in the legs of Eupagurus are described.
Databáze: OpenAIRE