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Single electrical shock of a somatic afferent nerve elicits A- and C-reflex discharges in gastric vagal efferent nerves in anesthetized rats.

Abstract：

:The possibility that single electrical shock stimulation of somatic afferent nerves could evoke a reflex response in vagal efferent nerves innervating the stomach was examined using anesthetized, artificially-ventilated rats. A single shock to a hindlimb afferent nerve (tibial nerve) produced two distinct reflex components in gastric vagal efferent nerves; namely (1) A-reflex discharges with a latency of about 120 ms and a duration of about 200 ms elicited by stimulation of myelinated A afferent fibers, and (2) C-reflex discharges with a latency of about 360 ms and a duration of about 200 ms elicited by stimulation of unmyelinated C afferent fibers. A single shock to a first lumbar spinal afferent nerve produced only a week reflex component with a latency of about 120 ms and a duration of about 190 ms in gastric vagal efferent nerves. Limb afferents appear to have stronger central pathways functionally connecting to gastric vagal efferent preganglionic neurons in the brainstem, than do abdominal afferents.

journal_name

Neurosci Lett

journal_title

Neuroscience letters

authors

Kimura A,Sato A,Sato Y,Suzuki A

doi

10.1016/0304-3940(96)12660-4

subject

Has Abstract

pub_date

1996-05-24 00:00:00

pages

53-6

issue

1

eissn

0304-3940

issn

1872-7972

pii

0304394096126604

journal_volume

210

pub_type

杂志文章

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