Ch. 12: Heart & Peripheral Vascular Flashcards
1
Q
3 layers of the heart
A
- pericardium
- myocardium
- endocardium
2
Q
The middle layer (myocardium) is…
A
the muscular tissue that contracts in order to eject blood
3
Q
The period of relaxation where the ventricles are filled with blood from the atria
A
diastole
4
Q
Occurs when the ventricles are contracted, creating pressure that closes the atrioventricular valve and prevents a backflow of blood into the atria
A
systole
5
Q
Known as the cardiac pacemaker
A
sinoatrial (SA) node
6
Q
The purpose of the lymphatic system is to…
A
remove fluid from the interstitial spaces in collaboration with the peripheral vascular system
