THE INFLUENCE OF ELASTIC PROPERTIES OF THE CRAB AXON SHEATH ON ITS MOVEMENT DURING ACTION-POTENTIAL
- 1 May 1987
- journal article
- research article
- Vol. 29 (5) , 569-575
Abstract
The shear modulus (.gamma.) of single giant axon of the crab Carcinus maenas was determined by measuring the axon elastic stretching up to 1-10%. The value obtained for .gamma. (5-7.cntdot.103 dn.cntdot.cm) is more than that for sheaths of reptilian and mammalian red blood cells by 104-106 times. Proteolysis of the axon sheath by pronase solution (2 mg/ml 15-20 min) increases the amplitude of axon movement at the action potential by 8-10 times. It is suggested that the collagen fibers, Schwann''s and connective cells are passive structures of the axon sheath, and that potential-depend axon movement at the action potential is due to deformation of the axolemma and submembrane layer.This publication has 2 references indexed in Scilit:
- Rapid pressure changes and surface displacements in the squid giant axon associated with production of action potentials.The Japanese Journal of Physiology, 1982
- Swelling of Nerve Fibers Associated with Action PotentialsScience, 1980