Multiple Choice
Which of the following would result from a reduced function of the Na+ channels in the SA node?
A) Depolarization would be delayed.
B) The heart rate would decrease.
C) Repolarization would not occur.
D) The plateau phase would be shorter.
E) Depolarization would be delayed, and the heart rate would decrease.
Correct Answer:
Verified
Correct Answer:
Verified
Q73: The chordae tendineae<br>A) connect the atria to
Q74: Increased vagal stimulation would cause<br>A) the heart
Q75: During the cardiac cycle,<br>A) the right atrium
Q76: Variations in respiratory rate is a symptom
Q77: The relationship between preload and stroke volume
Q79: Which of the following heart chambers is
Q80: Which of the following statements about coronary
Q81: Under resting conditions, the normal stroke volume
Q82: Calcium channel blockers are frequently used to<br>A)
Q83: The pericardial sac is lined with<br>A) fibrous