carotid body

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ca·rot·id bod·y

[TA]
a small epithelioid structure located just above the bifurcation of the common carotid artery on each side. It consists of granular principal cells and nongranular supporting cells, a sinusoidal vascular bed, and a rich network of sensory fibers of the glossopharyngeal nerve. It serves as a chemoreceptor organ responsive to lack of oxygen, excess of carbon dioxide, and increased hydrogen ion concentration.
Farlex Partner Medical Dictionary © Farlex 2012

carotid body

n.
A chemoreceptor that is a body of vascular tissue near the bifurcations of the carotid arteries. It monitors changes in the oxygen content of the blood and helps to control respiratory activity.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

ca·rot·id bod·y

(kă-rot'id bod'ē) [TA]
A small epithelioid structure located just above the bifurcation of the common carotid artery on each side. It serves as a chemoreceptor organ responsive to oxygen lack, carbon dioxide excess, and increased hydrogen ion concentration.
Synonym(s): intercarotid body.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

carotid body

A chemical receptor, situated at the first branch of each carotid artery, that monitors oxygen levels in the blood and regulates the rate of breathing accordingly.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
Carotid bodyclick for a larger image
Fig. 93 Carotid body . Location.

carotid body

an area of gland-like tissue situated near the joining of the external CAROTID ARTERY to the common carotid which acts as a CHEMORECEPTOR (see Fig. 93. When blood-oxygen concentration levels are low and/or the concentration of carbon dioxide is high, the carotid body is stimulated to produce nervous impulses which are transmitted to the respiratory centre in the hindbrain, thus influencing BREATHING rate and, in turn, heart rate.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

ca·rot·id bod·y

(kă-rot'id bod'ē) [TA]
Small epithelioid structure located just above the bifurcation of the common carotid artery on each side.
Medical Dictionary for the Dental Professions © Farlex 2012