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 area of the aorta supplies blood to the liver?
A) Descending aorta
B) Abdominal aorta
C) Aortic arch
D) Thoracic aorta

Question

Quizplus · Accepted Answer

The abdominal aorta supplies blood to the liver through the hepatic artery.

Answer: A, D
 Sinusoids are specialized capillaries found in the liver and other organs for exchange of substances between blood and tissue. The tunica externa is the outermost layer of blood vessels composed mainly of connective tissue, providing support and protection.

Answer: C, E, P
 Capillaries are the smallest blood vessels, with a narrow lumen allowing for only single-file passage of blood cells. They are responsible for exchange of substances between blood and tissue. Arterioles are small arteries with a relatively thick tunica media and a role in controlling blood flow to specific organs or tissues.

Answer: D, L, M
 The thoracic aorta is the portion of the aorta located in the chest region. Distributing arteries are medium-sized arteries that deliver blood to specific organs or regions within the body. Conducting arteries are large elastic arteries that function to dampen the pulsatile pressure generated by the heart.

Answer: B, F, K, O
 The abdominal aorta is the portion of the aorta located in the abdominal region, supplying blood to the abdominal organs and lower extremities. Resistance vessels are small arteries and arterioles that contribute to the regulation of blood flow and systemic blood pressure. Capacitance vessels are veins with a large capacity for blood storage, contributing to venous return and maintenance of blood volume. Large veins, such as the inferior vena cava, return blood to the heart from various regions of the body.

Answer: H, N
 Venule are small veins that drain blood from capillaries and merge to form larger veins. Metarterioles are precapillary sphincters which play a major role in regulating blood flow between arterioles and capillaries.

Match Each Vascular Structure to Its Function or Characteristic