cardiac system 3 Flashcards
1
Q
p wave
A
atrial depolarization
2
Q
PR segment
A
AV nodal delay
3
Q
QRS complex
A
ventricular depolariazation (atria repolarizing simultaneously)
4
Q
ST segment
A
time during which ventricles are contracting and emptying
5
Q
T wave
A
ventricular repolarization
6
Q
TP interval
A
time during which ventricles are relaxing and filling
7
Q
what serve to drive blood flow through the heart
A
the mechanical events of the cardiac cycle, alternating contrcation, and relaxation
simulated by cardiac electrical activity
8
Q
contraction during systole results from
A
the spread of electrical excitation across the heart
9
Q
what does relaxation of the heart lead to
A
repolarization of the cardiac muscle
10
Q
lub whistle dup
A
stenotic valve defect
systolic
stenotic semilunar valve
whisting systolic murmur signifies that a valve
