MSK Major arteries of the neck

Question 1

What is the origin of the left and right common carotid arteries?

Answer 1

Left common carotid branches directly off the arch of aorta

Right common carotid artery arises from a bifurcation of brachiocephalic trunk at the level of the right sternoclavicular joint

Question 2

What are the main branches of the left and right common carotid arteries and where do these branches arise?

Answer 2

The common carotid arteries branch off at the level of C4 to form the external and internal carotid arteries.

The common and internal carotid slightly bulge- the carotid sinus (important for detecting bp)

Question 3

What arteries are responsible for the blood supply to the brain?

Answer 3

Vertebral arteries and internal carotid arteries

Question 4

Where do the vertebral arteries arise from?

Answer 4

Arise from the subclavian arteries