Medical Mcqs

Which of the the following is not correct ?
  • (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