Author Question: What are the major branches of the left coronary artery? 1. Anterior descending 2. Circumflex 3. ... (Read 48 times)

altibaby · **on:** Jul 16, 2018

What are the major branches of the left coronary artery? 1. Anterior descending 2. Circumflex 3. Coronary sinus 4. Posterior descending

a. 1, 2, and 3 only
b. 2 and 4 only
c. 1 and 2 only
d. 2 and 3 only

Question 2

What are the first arteries to branch off the ascending aorta?

a. Brachiocephalic
b. Carotid
c. Coronary
d. Subclavian

l.stuut · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: C
An anterior descending branch courses down the anterior sulcus to the apex of the heart. A cir-cumflex branch moves along the coronary sulcus toward the back and around the left atrial ap-pendage.

Answer to Question 2

ANS: C
Two main coronary arteries, a left and a right, arise from the root of the aorta.