Abstract
1. In neutral environmental temperatures, shivering was induced in sheep by intra-ruminal cooling. Shivering was then depressed for a period by intra-abdominal heating. Intra-abdominal heating without ruminal cooling induced panting and a reduction of caval temperatures. Posterior caval temperatures were found to be inappropriate to the responses observed.
2. Intra-abdominal heating of sheep in cold and warm environments depressed shivering and augmented panting respectively. Unilateral splanchnotomy abolished these responses on the ipsilateral side.
3. The results are interpreted to indicate that the thermoreceptors stimulated lie within the walls of the rumen and intestine, and possibly the mesenteric veins.
4. The splanchnic nerves are indicated as the afferent pathway for these receptors, and differential splanchnic innervation of the gut is suggested to explain unilateral abolition of the response to warming.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- BLIGH J. THE RECEPTORS CONCERNED IN THE RESPIRATORY RESPONSE TO HUMIDITY IN SHEEP AT HIGH AMBIENT TEMPERATURE. J Physiol. 1963 Oct;168:747–763. doi: 10.1113/jphysiol.1963.sp007220. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kosaka M., Simon E., Thauer R., Walther O. E. Effect of thermal stimulation of spinal cord on respiratory and cortical activity. Am J Physiol. 1969 Sep;217(3):858–864. doi: 10.1152/ajplegacy.1969.217.3.858. [DOI] [PubMed] [Google Scholar]
- Rawson R. O., Quick K. P., Coughlin R. F. Thermoregulatory responses to intra-abdominal heating of sheep. Science. 1969 Aug 29;165(3896):919–920. doi: 10.1126/science.165.3896.919. [DOI] [PubMed] [Google Scholar]
- Rawson R. O., Quick K. P. Evidence of deep-body thermoreceptor response to intra-abdominal heating of the ewe. J Appl Physiol. 1970 Jun;28(6):813–820. doi: 10.1152/jappl.1970.28.6.813. [DOI] [PubMed] [Google Scholar]
- Rawson R. O., Quick K. P. Thermoregulatory responses to temperature signals from the abdominal viscera of sheep. J Physiol (Paris) 1971 May;63(3):399–402. [PubMed] [Google Scholar]
- Rawson R. O., Quick K. P. Unilateral splanchnotomy: its effect on the response to intra-abdominal heating in the ewe. Pflugers Arch. 1971;330(4):362–365. doi: 10.1007/BF00588587. [DOI] [PubMed] [Google Scholar]