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
Correct Answer: Carotid sinus acts as a chemoreceptor ✔
Last Updated: February 07, 2020