Which of the following is TRUE of the absolute refractoryperiod?
a) It establishes the maximum frequency with which a nerve cellcan conduct action potentials
b) It does not end until the Na+/K+ pump has restored the ionsto their original locations
c) It establishes the maximum number of graded potentials thatcan summate
d) Two of the above are correct
d) a) b) and c) are correct
Please provide an explanation. Thank you.
