9 cardiovascular Flashcards
1
Q
cardiac cycle
A
repeating pattern of contraction/relaxation of heart
2
Q
diastole
A
relax
3
Q
systole
A
contract
4
Q
single circulation
A
fish
1 ventricle & 1 atrium
5
Q
double circulation
A
amphibians, birds, reptiles, mammals
pulmonary circuit & systemic circuit
6
Q
endocardium
A
lining inner wall of heart
7
Q
myocardium
A
middle layer and the bulk of the heart wall
8
Q
epicardium
A
outer layer of cells
9
Q
pericardium
A
outermost layer that surrounds and protects the heart which allows for vigorous pumping but also holds heart in place to reduce friction
10
Q
systolic BP
A
measures the max amount of pressure that blood exerts on vessels while the heart is beating (systole)
- optimal BP is 120
11
Q
diastolic BP
A
measures the pressure in the vessels b/w heart beats (diastole)
- optimal BP is 80
