Electrical Activity in Chick Amnion

30 November 1956

journal article
research article
Published by American Physiological Society in American Journal of Physiology-Legacy Content

Vol. 187 (3) , 546-548
https://doi.org/10.1152/ajplegacy.1956.187.3.546

Abstract

Isolated amnions from chick embryos showed spontaneous electrical activity, both local and conducted. Responses to barium and to shocks were conducted at an average of 2.9 cm/sec. (38–40°C). Conducted responses were observed in amnions at 5–10 days of incubation. Failure of conduction in older amnions appears related to the shortening and increased randomness of the muscle fibers. This preparation gives conclusive proof of conduction in nerve-free smooth muscle.

Keywords

AMNION