Pathway of Cardiac Electrical Conduction

Question 1

How are cardiac muscles different from skeletal?

Answer 1

cardiac muscles have intercalated discs

Question 2

Autorhythmic cells

Answer 2

specialized cardiac muscle cells where electrical impulses in the heart originate
-has a pacemaker to initiate the cardiac cycle

Question 3

Sinoatrial node

Answer 3

located in the upper wall of right atrium

Question 4

atrioventricular node

Answer 4

located near lower region of interatrial septum

Question 5

atrioventricular bundle

Answer 5

receives the action potential from AV node and transmit impulses

Question 6

Purkinje fibers

Answer 6

large-diameter fibers that complete the action potential upward through the ventricles