Melanocyte-stimulating hormone (MSH)is only secreted by the human pars intermedia
A)in old age.
B)in very young children.
C)in times of stress.
D)in healthy adults.
E)when a person is exposed to UV radiation.

Question

Quizplus · Accepted Answer

MSH is primarily secreted by the pars intermedia of the pituitary gland in very young children, usually before the age of 5. As a person ages, the pars intermedia tends to merge with the anterior pituitary, reducing or eliminating MSH secretion. MSH may also be secreted in small amounts in response to UV radiation, but this is not its primary function.

Melanocyte-Stimulating Hormone (MSH)is Only Secreted by the Human Pars Intermedia