Match each vascular structure to its function or characteristic. Terms may apply to more than one question. Some terms may not be used.
a.arteries
i.sinusoids
b.tunica externa
j.tunica media
c.capillaries
k.capacitance vessels
d.tunica intima
l.distributing arteries
e.lumen
m.conducting arteries
f.resistance vessels
n.metarterioles
g.medium-sized veins
o.large veins
h.venules
p.arterioles
-Which are the three branches of the aortic arch?
A) Descending aorta, thoracic aorta, and left common carotid
B) Brachiocephalic artery, thoracic aorta, and ascending aorta
C) Left common carotid, brachiocephalic, and left subclavian arteries
D) Left common carotid, right common carotid, and coronary arteries

Question

Quizplus · Accepted Answer

The three branches of the aortic arch are the left common carotid, brachiocephalic, and left subclavian arteries. 
Answer: A, D
 Arteries are vessels that carry blood away from the heart. Conducting arteries (m) are the largest arteries that are closest to the heart and have the most elastic tissue. Distributing arteries (l) are smaller arteries that branch out from conducting arteries and deliver blood to specific organs or regions of the body. Arterioles (p) are small arteries that regulate blood flow into capillary beds. 
Answer: B, F
 Resistance vessels (f) are arterioles and small arteries that provide resistance to blood flow and regulate blood pressure. Tunica externa (b) is the outer layer of blood vessels that provides support and protection.

Match Each Vascular Structure to Its Function or Characteristic