In an embryonic femur, the osteoclasts form:
A)the primary center of ossification in the diaphysis
B)the secondary center of ossification in the distal epiphysis
C)the marrow cavity in the diaphysis
D)all of the centers of ossification

Question

Quizplus · Accepted Answer

Osteoclasts are involved in the formation of the marrow cavity in the diaphysis, but not the centers of ossification. The primary center of ossification forms in the diaphysis and is formed by osteoblasts, while the secondary center of ossification forms in the epiphysis and is also formed by osteoblasts. Therefore, choices A and B are incorrect, and choice D is incorrect because osteoclasts do not form all of the centers of ossification.

In an Embryonic Femur, the Osteoclasts Form