HEART Flashcards
1
Q
heart’s location, above diaphragm, between the lungs
A
mediastinum
2
Q
hollow, muscular organ
A
heart
3
Q
innermost layer; endothelial tissues and lines the inside of heart and valves
A
endocardium
4
Q
thickest layer; muscle fibers; pumping actions
A
myocardium
5
Q
outer layer of the heart
A
epicardium
6
Q
protect the heart’s wall
A
pericardium
7
Q
- lubricate the surface of the heart
- reduce friction during systole
- contains parietal fluid
A
pericardial space
8
Q
two layers of pericardium
A
visceral and parietal
9
Q
contraction
A
systole
10
Q
relaxation
A
diastole
11
Q
ventricles contract and send blood out of the body
A
systole
12
Q
ventricles relax and send fill up with blood from the atria
A
diastole
13
Q
other term for diastole
A
period of ventricular filling
14
Q
chambers relax simultaneously
A
diastole
15
Q
starts with atrial then ventricular
A
systole
