Which of the following is most likely to be classified as a muscular artery?
A) the ascending aorta
B) the pulmonary trunk
C) the aortic arch
D) the superior mesenteric
E) None of the items are classified as a muscular artery.

Question

Quizplus · Accepted Answer

The superior mesenteric artery is a branch of the abdominal aorta and is classified as a muscular artery because it contains a significant amount of smooth muscle in its tunica media. The other options (ascending aorta, pulmonary trunk, and aortic arch) are classified as elastic arteries because they have a higher ratio of elastic fibers to smooth muscle.

Which of the Following Is Most Likely to Be Classified