Which of the following events occurs first?
A) Threshold
B) Depolarization
C) Early repolarization
D) Final repolarization
E) Pacemaker potential
Correct Answer:
Verified
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
Q51: If the SA node is nonfunctional, which
Q52: The action potentials are slowed at the
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
Q57: Depolarization of a cardiac muscle cell occurs
Q58: Energy for contraction of cardiac muscle cells
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