Chapter 21

Question 1

5 main types of blood vessels

Answer 1

1) arteries
2) arterioles
3) blood capillaries
4) venules
5) veins

Question 2

3 layers of the blood vessel

Answer 2

1) tunica interna
2) tunica media
3) tunica externa

Question 3

layers of the tunica interna

Answer 3

1) endothelium
2) basement membrane
3) internal elastic lamina

Question 4

The inner lining of the blood vessel that comes in direct contact with the lumen

Answer 4

tunica interna

Question 5

Muscular and connective tissue layer of the blood vessels that displays the greatest variation among the different vessel types

Answer 5

tunica media

Question 6

Outer covering of the blood vessel

Answer 6

tunica externa

Question 7

Types of arteries

Answer 7

1) elastic
2) muscular

Question 8

Largest type of arteries

Answer 8

elastic

Question 9

Arteries that function to help propel blood onward while the ventricles are relaxing

Answer 9

elastic

Question 10

Medium-sized arteries with lots of smooth muscles for vasodilation and vasoconstriction

Answer 10

muscular

Question 11

Also known as the conducting arteries

Answer 11

elastic

Question 12

Also known as the distributing arteries

Answer 12

muscular

Question 13

Smaller arteries

Answer 13

arterioles

Question 14

Union of the branches of two or more arteries supplying the same body region

Answer 14

anastomoses

Question 15

Alternative route of blood flow to a body part through an anastomosis

Answer 15

collateral circulation

Question 16

Also known as the resistance vessels

Answer 16

arterioles

Question 17

Also known as the exchange vessels

Answer 17

capillaries

Question 18

Blood vessels that lack a tunica media and a tunica externa

Answer 18

capillaries