Growth hormone
A)directly stimulates bone growth
B)exerts its effects on bones via somatomedin release
C)promotes closure of the epiphyseal plate
D)does both a and c
E)does both b and c

Question

Quizplus · Accepted Answer

Growth hormone exerts its effects on bones indirectly via the release of somatomedins, such as insulin-like growth factor 1 (IGF-1) from the liver. IGF-1 stimulates bone growth and promotes closure of the epiphyseal plate. Therefore, option B is the correct answer. Option A is incorrect because growth hormone does not directly stimulate bone growth. Option C is partially correct, but growth hormone promotes closure of the epiphyseal plate indirectly via IGF-1 release. Therefore, option E is also incorrect.

Growth Hormone