Which of the the following is not correct ?
Correct answer: D. Carotid sinus acts as a chemoreceptor
- A. Right CCA is a branch of brachiocephalic artery
- B. Left CCA is a branch of arch of aorta
- C. The CCA is divided into external and internal carotid arteries at the level of upper border of thyroid cartilage
- D. Carotid sinus acts as a chemoreceptor
Explanation
The carotid sinus is a baroreceptor that detects blood-pressure changes, whereas the nearby carotid body is the chemoreceptor. The other statements correctly describe the origins and bifurcation of the common carotid arteries.
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