Multiple Choice
Which of the following is an effect of parasympathetic activity to the heart?
A) SA nodal cells are depolarized.
B) Heart rate is increased.
C) cAMP is activated.
D) The rate of spontaneous depolarization in SA nodal cells decreases.
E) Postganglionic neurons release acetylcholine, which binds to nicotinic cholinergic receptors in the SA node.
Correct Answer:
Verified
Correct Answer:
Verified
Q114: Which component of an ECG represents ventricular
Q115: Which of the following decreases heart rate?<br>A)
Q116: What is occurring during ventricular ejection?<br>A) The
Q117: What is the function of the sodium
Q118: Which statement best describes why atrial depolarization
Q120: Which of the following is TRUE of
Q121: Ejection of blood from the right ventricle
Q122: An electrocardiogram recording is the same thing
Q123: Which channel type allows sodium movement into
Q124: Which channel type allows ion movement out