Question

multiple choice question
indicate the correct description of arterial flow.
the right common carotid a. arises from the right subclavian a.
the right subclavian a. is a branch of the right brachiocephalic trunk.
the right subclavian a. branches directly from the aortic arch.
the left subclavian a. is a branch of the brachiocephalic trunk.

Explanation:

The right subclavian artery is a branch of the right brachiocephalic trunk. The right common carotid artery also arises from the right brachio - cephalic trunk, not the right subclavian artery. The right subclavian artery does not branch directly from the aortic arch (the brachio - cephalic trunk does first). The left subclavian artery branches directly from the aortic arch, not from the brachio - cephalic trunk.

Answer:

The right subclavian a. is a branch of the right brachiocephalic trunk.