GUMES Flashcards
1
Q
what are the three layers of the heart
A
pericardium
myocardium
endocardium
2
Q
cardiac cycle
A
sequence of pressure and volume changes that occur during one heartbeat
3
Q
lub dub vs korotkoff sounds
A
lub dub = closing of valves
korotkoff = turbulent blood flow
4
Q
cardiac output
A
volume of blood ejected by each ventricle into its artery per minute
5
Q
inotropy
A
strength of contraction
6
Q
lusitrophy
A
rate of relaxation
7
Q
chronotrophy
A
heart rate
8
Q
dromotrophy
A
conduction speed of AV node
9
Q
total peripheral resistance
A
resistance that must be overcome to push blood through the circulatory system
