A&P

Question 1

3 layers of pericardium

Answer 1

visceral (25 ml fluid)
parietal
fiberous

Question 2

atrioventricular valves

Answer 2

tricuspid

bicuspid

Question 3

semilunar valves

Answer 3

pulmonic

aortic

Question 4

chordae tendinea

Answer 4

connect heart valve to papillary muscles

Question 5

tunica media

Answer 5

middle layer

gives vessle ability to recoil

Question 6

tunica adventia

Answer 6

gives vessle strength

Question 7

trace blood flow

Answer 7

r atrium 
tricuspid valve 
r ventricle 
pulmonic valve/artery 
lungs/pulmonic vein 
left atrium-mitral valve 
left ventricle - aortic valve 
aorta 
body

Question 8

R coronary artery

Answer 8

supplies right atrium, portion of right ventricle, part of conduction system. 2 parts are posterior descending and marginal

Question 9

coronary collateral circulation

Answer 9

protective mechanism that provides alternative path for blood to flow in event of blockage

Question 10

stroke volume

Answer 10

60-100 ml with average of 70

Question 11

ejection fraction

Answer 11

percentage of blood ejected each beat

55-70% is normal

Question 12

another name for afterload

Answer 12

systemic vascular resistance

Question 13

intercolated discs

Answer 13

allow simultanious contraction

Question 14

cardiac action potential

Answer 14

4= resting action potential 
0= depolarization (rush of sodium) 
1-2= calcium slowly introduced into cell 
3 repolarization 
4 potassium shifts back into cell

Question 15

lumen

Answer 15

where blood actually flows

Question 16

2 types of arteries

Answer 16

elastic (aorta)

muscular (propels blood)

Question 17

3 types of capillaries

Answer 17

continous ( skin and muscles)
fenestrates(gi tract)
sinusoids (liver bone marrow spleen) porous

Question 18

left atrioventricular valve

Answer 18

mitral valve

Question 19

pathologic q wave means

Answer 19

infarcted tissue