The hyperpolarization observed following an action potential is the result of
a. potassium continuing to leave the cell
b. chloride continuing to enter the cell.
c. sodium continuing to enter the cell.
d. potassium returned to the cell by the sodium-potassium pumps.
a
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Jasmine is out shopping without her newborn. She sees another mother nursing her infant and Jasmine 's breasts suddenly fill will milk, although her baby is not there to nurse. What would you tell her is happening?
a. She is having a breast-swelling reflex. b. She is experiencing a milking reflex. c. She is experiencing the let-down reflex. d. She is having a lactation reflex.
The cephalocaudal trend in physical growth is illustrated by
A) earlier growth of the arms and legs than of the chest and trunk. B) later growth of the arms and legs than of the hands and feet. C) earlier growth of the legs and feet than of the arms and hands. D) later growth of the trunk and legs than of the head and chest.