1. Parasympathetic stimulation controls cardiac action by reducing the heart rate, the speed of impulse through the AV node, and the force of atrial contraction. This response is known as the: a....

1. Parasympathetic stimulation controls cardiac action by reducing the heart rate, the speed of impulse through the AV node, and the force of atrial contraction. This response is known as the:

a. Nodal response c. Neurotransmitter

b. SA node d. Vagal response

2. A cardiac abnormality in the electrical conduction through the ventricles may be identified on the EKG tracing by a(n):

a. Distorted, varying P wave pattern

b. Prolonged PR interval

c. Wide and bizarre QRS complex

d. Elevated S-T segment