Structure

Question 1

what are the types of blood vessel?

Answer 1

arteries, veins, arterioles, venules, & capillaries

Question 2

define tunics

Answer 2

coats of blood vessels

Question 3

describe tunica intima

Answer 3

innermost layer (endothelium)

Question 4

purpose of tunica intima

Answer 4

smooth flow of blood

Question 5

describe tunica media

Answer 5

middle layer made of smooth involuntary muscle, controlled by the ANS

Question 6

purpose of tunica media

Answer 6

contract blood vessels to push blood forward

Question 7

which has the thinner tunica media: arteries or veins

Answer 7

veins

Question 8

describe the tunic externa

Answer 8

outermost layer made of supporting connective tissue

Question 9

purpose of tunica externa

Answer 9

protection & anchorage

Question 10

What is the largest artery

Answer 10

aorta

Question 11

what is the largest blood vessel

Answer 11

inferior (& superior?) vena cava

Question 12

What is the smallest blood vessel

Answer 12

capillaries

Question 13

where do all arteries branch from

Answer 13

aorta

Question 14

Give examples of arteries

Answer 14

aorta, brachiocephalic, common carotid, subclavian, axillary, brachial, anterior & posterior tibial, radial, ulnar, celiac trunk, renal, femoral, popliteal

Question 15

give examples of deep veins

Answer 15

brachiocephalic, jugular (internal & external), subclavian, axillary, brachial, hepatic, renal, femoral, popliteal, tibial (posterior & anterior)

Question 16

give examples of superficial veins

Answer 16

cephalic, basilic, median cubital, great saphenous

Question 17

how thick are capillaries

Answer 17

1

Question 18

purpose of capillaries?

Answer 18

exchange CO2, O2, & other substances between blood & interstitial fluid

Question 19

what are the 3 ways capillaries move substances

Answer 19

diffusion, blood pressure, filtration

Question 20

what is the main method of movement of capillaries

Answer 20

diffusion (in & out)

Question 21

Blood pressure is also called what when referring to movement of capillaries

Answer 21

filtration

Question 22

Which direction does blood pressure move substances

Answer 22

push materials into tissue fluid (in)

Question 23

which direction does osmotic pressure move substances

Answer 23

move into capillaries (out)