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Expiratory muscle control during vomiting - Role of brain stem expiratory neuronsThe neural mechanisms controlling the muscles involved during vomiting were examined using decerebrated cats. In one experiment, the activity of the ventral respiratory group (VRG) expiratory (E) neurons was recorded during induced 'fictive vomiting' (i.e., a series of bursts of coactivation of abdominal and phrenic nerves that would be expected to produce expulsion in unparalyzed animals) and vomiting. In a second, abdominal muscle electromyographic and nerve activity were compared before and after sectioning the axons of descending VRG E neurons as they cross the midline between C1 and the obex (the procedure that is known to abolish expiratory modulation of internal intercostal muscle activity). The results of the study indicate that the abdominal muscles are controlled differently during respiration and vomiting.
Document ID
19880033027
Document Type
Conference Proceedings
Authors
Miller, A. D. (Rockefeller Univ. New York, NY, United States)
Tan, L. K. (Rockefeller University New York, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Subject Category
LIFE SCIENCES (GENERAL)
Funding Number(s)
CONTRACT_GRANT: NSF BNS-83-17651
CONTRACT_GRANT: NIH-NS-20585
CONTRACT_GRANT: NSG-2380
CONTRACT_GRANT: NAG2-164
CONTRACT_GRANT: NIH-RR-07065
Distribution Limits
Public
Copyright
Other