aortic body

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aortic body

One of the small bilateral structures, attached to a small branch of the aorta near its arch, and containing chemoreceptors that respond primarily to decreases in blood oxygen concentration.

aortic body,

one of several small structures on the arch of the aorta that contain neural tissue sensitive to the chemical composition of arterial blood. The aortic bodies respond primarily to large reductions in blood oxygen content and trigger an increase in respiratory rate. See also aortic-body reflex, carotid body.

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