Spinal Synaptic Delay in Young and Aged Rats
- 31 July 1958
- journal article
- research article
- Published by American Physiological Society in American Journal of Physiology-Legacy Content
- Vol. 194 (2) , 403-405
- https://doi.org/10.1152/ajplegacy.1958.194.2.403
Abstract
Synaptic delays for the monosynaptic flexor hallucis longus reflex were measured in 117-, 276-, 445- and 822-day-old rats. The mean synaptic delays were 0.97, 1.14, 1.23 and 1.36 msec. Afferent conduction velocity was approximately the same in young (66.1 m/sec.) and old (56.9 m/sec.) rats; however ventral root conduction velocity decreased from 64.2 m/sec. in the young animals to 43.7 m/sec. in the aged rats.Keywords
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