Conduction of the Heart Flashcards
1
Q
Electrical activity of the Heart
A
Conduction of the Heart
2
Q
What happens first? Electrical impulse or contractility?
A
electrical impulse 1st; contractility after
3
Q
1) the pacemaker of the heart, where impulse originates; Mr. Conductor
A
sinus node
4
Q
2). atrial ventricular (btwn atrium & ventricle)
A
AV node
5
Q
3). conducts electricity
A
Bundle of His
6
Q
4). travels along IVS (Interventricular Septom)
A
R & L bundles (ventricles)
7
Q
5). terminals stimulate contractility
A
purkinje fibers
