| Characteristics of inspiratory inhibition by occlusion of both external carotid and basilar arteries in cats. | |
| | |
MedLine Citation:
|
PMID: 1803057 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Effects of the occlusion of both the external carotid and basilar arteries on the inspiratory activity were studied in anesthetized, vagotomized, paralyzed, and artificially ventilated cats. Integrated phrenic nerve activity was used as an index of the inspiratory activity. Blood pressure in the lingual artery, located downstream from the occluded external carotid arteries, was measured as the arterial pressure of the upper brain stem during occlusion. The basilar artery was occluded at the boundary between the medulla and pons. Occlusions of the external carotid arteries and basilar artery suppressed the phrenic nerve activity to finally disappear within 1 min (phrenic nerve apnea, 45 out of 50 occlusions in 6 cats). The blood pressure in the upper brain stem was 16.6 +/- 5.7 mmHg (mean +/- S.D.) during occlusions. These effects of occlusion on the phrenic nerve activity were also observed during hypercapnia and hypoxia, although they were not so remarkable as those during normocapnia and normoxia. The results indicate that the upper part of the brain stem operates a profound facilitatory mechanism on the medullary inspiratory activity. |
| | |
Authors:
|
T Natsui; S Kuwana |
Related Documents
:
|
21470547 - Subclavian vein thrombosis: an unusual presentation of renal cell carcinoma. 7087397 - Morphologic findings in lymph nodes after occlusion of their efferent lymphatic vessels... 6584597 - Treatment of open occlusions with onlay and overlay removable partial dentures. 675487 - Emergency occlusive techniques. 10762877 - Catheter-based therapy for saphenous vein bypass graft disease. 1243917 - Intrathecal radioisotopes and phlebography in investigation of ventriculo-atrial shunts... |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: The Japanese journal of physiology Volume: 41 ISSN: 0021-521X ISO Abbreviation: Jpn. J. Physiol. Publication Date: 1991 |
Date Detail:
|
Created Date: 1992-04-30 Completed Date: 1992-04-30 Revised Date: 2007-03-21 |
Medline Journal Info:
|
Nlm Unique ID: 2985184R Medline TA: Jpn J Physiol Country: JAPAN |
Other Details:
|
Languages: eng Pagination: 735-48 Citation Subset: IM |
Affiliation:
|
Department of Physiology, School of Medicine, Teikyo University, Tokyo, Japan. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Animals Arterial Occlusive Diseases / physiopathology* Basilar Artery / physiopathology* Blood Pressure Brain Stem / blood supply Carbon Dioxide / blood Carotid Artery, External / physiopathology* Cats Disease Models, Animal Oxygen Consumption Phrenic Nerve / physiopathology Respiration / physiology* |
| Chemical | |
Reg. No./Substance:
|
124-38-9/Carbon Dioxide |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Measurement of local capillary permeability in skeletal muscle by microscopic clearance method.
Next Document: Effect of exercise on fractional extraction of catecholamines by the denervated heart in conscious d...