Question

Carotid-system arch arises from
A. Right auricle
B. Right ventricle
C. Left auricle
D. Left ventricle

Answer 1

Hint: Common carotid artery is a large artery that delivers the major blood supply to the head and neck. Carotid arteries are the main vessels that supply blood to the brain and to the face.

Complete Answer:
- The aorta is the largest artery of the body that rises from the left ventricle. It provides blood from the heart to other parts the body via the left ventricle. The aorta is grouped into four regions: the ascending aorta, the aortic arch, the descending thoracic aorta and the abdominal aorta.
- The aortic arch is that part of the aorta that forms a curve between the ascending and descending aorta. It leaves the heart and rises, then descends back to form an arch and form branches that bring blood to the brain, neck and arms.
- The common carotid arteries arise from the brachiocephalic trunk on the right and aortic arch to the left. They are divided into the internal and external carotid arteries. The internal carotid arteries, together with the vertebral arteries, are the two important arteries that supply blood to the brain. The external carotid artery carries blood to multiple tissues of the face, lower jaw, oesophagus, throat, and larynx.

Thus the correct answer is option D i.e., Left ventricle.

Note: The main arteries arising from the aortic arch are the brachiocephalic artery, the left carotid artery and the left subclavian artery. The brachiocephalic artery brings blood to the right side of the arm and right brain; the left carotid artery to the left brain; and the left subclavian artery to the left arm respectively.