alleryStart learning →Where are the baroreceptors that report blood pressure to the central nervous system?
AIn the aorta and the carotid sinuses
BIn the renal pelvis and the ureters
CIn the atria and the pulmonary veins
DIn the hypothalamus and the pituitary
Answer & Solution
Correct answer: A. In the aorta and the carotid sinuses
1. The body cannot measure blood volume directly, so it measures pressure instead.
2. Baroreceptors in the aorta and the carotid sinuses do that measuring.
3. They report to the central nervous system by changing how often they fire.
4. Blood pressure usually reflects blood volume, which is what the kidney ultimately needs to know.
_Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 25 "The Urinary System", section 25.9 Regulation of Fluid Volume and Composition_
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