1. The AV node is located in the: a. Right atrium b. Left ventricle c. Purkinje fiber tract d. Atrioventricular septum 2. The intrinsic firing rate of the AV junction is _______ BPM. a. 15–20...

1. The AV node is located in the:

a. Right atrium

b. Left ventricle

c. Purkinje fiber tract

d. Atrioventricular septum

2. The intrinsic firing rate of the AV junction is _______ BPM.

a. 15–20               c. 35–45

b. 25–35               d. 40–60

3. The intrinsic firing rate of the SA node is _______ BPM.

a. 20–60               c. 60–100

b. 40–80               d. 80–100