Medullary swallowing‐related neurons in the anesthetized cat
作者:
Toshiro Umezaki,
Toshiaki Matsuse,
Takemoto Shin,
期刊:
NeuroReport
(OVID Available online 1998)
卷期:
Volume 9,
issue 8
页码: 1793-1798
ISSN:0959-4965
年代: 1998
出版商: OVID
关键词: Cat;Laryngeal reflex;Medulla oblongata;Nucleus of the tractus solitarius;Reticular formation;Swallowing;Superior laryngeal nerve
数据来源: OVID
摘要:
SWALLOWING-RELATED neurons (SRNs) were recorded systematically in the medulla oblongata of urethane-anesthetized cats. The SRNs received orthodromic inputs from the superior laryngeal nerve (SLN) and showed transient changes in their activity synchronous with swallowing. These neurons could be divided into three types. Type I SRNs are sensory-relay neurons from the SLN in the nucleus of the tractus solitarius (NTS), type II are interneurons located diffusely in the parvo-cellular reticular formation ventral to the NTS, which received oligosynaptic inputs from the SLN, and type III are motoneurons in the nucleus ambiguus. Some type II neurons still showed the swallowing activity after the animals were paralysed, which suggests that they could be involved in the generation of swallowing outputs.
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