BIOLOGY 221
Practice Quizzes - Blood Vessels
J.E. Lathrop-Davis, Assistant Professor
CCBC Catonsville

1.      What are the three layers of a vein or artery from the inner most to the outer most?

a.       _________________

b.      _________________

c.       _________________

2.      What are two main functions of the elastic arteries?

a.       _______________________________________________________

b.      _______________________________________________________

3.      Name and describe the three structural types of capillaries?

a.       _______________________________________________________

b.      _______________________________________________________

c.       _______________________________________________________

4.      Fill in the following answers.

a.       ___________________ main vessel type responsible for distributing blood to organs.

b.      ___________________ vessels that vasoconstrict/vasodilate to control flow of blood to capillary beds.

c.       ___________________ vessels that collect blood from capillaries

d.      ___________________ vessels that return blood to heart

e.       __________________________ return fluid that is filtered at the capillaries (i.e., leaves the blood) back to the blood vascular system.

5.      Give two examples of venous sinuses:

a.       _____________________

b.      _____________________

6.      What vessels are responsible for the following?

a.       greatest percentage of blood found here ____________________________

b.      sites of exchange between blood and interstitial fluid ___________________________

c.       least resistance to blood flow ___________________________

d.      greatest resistance to blood flow ____________________________.