Multiple Choice
During repolarization (phase 3) of a contractile cell action potential,
A) only sodium permeability is increased.
B) only calcium permeability is increased.
C) only potassium permeability is increased.
D) sodium and calcium permeability are both increased.
E) sodium and potassium permeability are both increased.
Correct Answer:

Verified
Correct Answer:
Verified
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