Accelerated Closure of the Epiphyseal Plates Could Be Caused By

Question

Accelerated closure of the epiphyseal plates could be caused by
A) high levels of vitamin D.
B) too much calcium in the diet.
C) elevated levels of estrogen.
D) too little thyroxine.
E) an excess of growth hormone.

Accepted Answer

Elevated levels of estrogen can accelerate the closure of epiphyseal plates. Estrogen is involved in the regulation of bone growth, and high levels of estrogen can stimulate the closure of the plates, leading to premature cessation of bone growth. This is why girls usually stop growing earlier than boys, as they typically have higher estrogen levels during puberty.