Which of the following is the single most important stimulus for epiphyseal plate activity during infancy and childhood?
A) calcium
B) growth hormone
C) thyroid hormone
D) parathyroid hormone

Question

Quizplus · Accepted Answer

Growth hormone is the single most important stimulus for epiphyseal plate activity during infancy and childhood. It promotes longitudinal bone growth by stimulating proliferation of chondrocytes (cartilage cells) in the epiphyseal plate. Calcium, thyroid hormone, and parathyroid hormone also play roles in bone growth, but they are not the primary stimuli for epiphyseal plate activity.

Which of the Following Is the Single Most Important Stimulus