If the SA node is nonfunctional, which of the following is most likely to occur?
A) The heart will go into asystole (stop) .
B) Tachycardia will develop.
C) Another portion of the heart will become the pacemaker.
D) The heart will go into defibrillation.
E) The heart will be desensitized.
Correct Answer:
Verified
Q46: Action potentials pass from one cardiac muscle
Q47: Ventricular contraction begins at the
A) AV bundle.
B)
Q48: The "pacemaker" of the heart is the
A)
Q49: Calcium channel blockers are frequently used to
A)
Q50: The cardiac electrical impulse normally begins spontaneously
Q52: The action potentials are slowed at the
Q53: Which of the following events occurs first?
A)
Q54: Cardiac muscle cells
A) have smooth ER but
Q55: Which of the following sequences for the
Q56: Which of the following is a function
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