Which of the following statements correctly describes melanocyte-stimulating hormones?
A)They are secreted by the hypothalamus.
B)They are known to cause skin darkening in certain lower vertebrates.
C) They are believed to be responsible for the tanning phenomenon in humans.
D) They are responsible for circadian rhythm.

Question

Quizplus · Accepted Answer

Melanocyte-stimulating hormones are known to cause skin darkening in certain lower vertebrates, but in humans, they have a minimal effect on skin pigmentation. In humans, melanin production is mainly regulated by melanocyte-stimulating hormone produced by the pituitary gland. However, other factors such as sun exposure and genetics also play a significant role in skin pigmentation.

Which of the Following Statements Correctly Describes Melanocyte-Stimulating Hormones