1. Purkinje’s network fibers can be identified only with the aid of a microscope. a. True b. False 2. Purkinje’s network fibers are smaller in diameter than ordinary cardiac muscle fibers. a. True b....

1. Purkinje’s network fibers can be identified only with the aid of a microscope.

a. True b. False

2. Purkinje’s network fibers are smaller in diameter than ordinary cardiac muscle fibers.

a. True b. False

3. The primary functions of the myocardial working cells include:

a. Automaticity

b. Regeneration

c. Contraction and relaxation

d. Impulse propagation