The primary ossification center of a long bone is located:
A) in the diaphysis.
B) in the epiphysis.
C) in the medullary cavity.
D) at the epiphyseal cartilage.

Question

Quizplus · Accepted Answer

The primary ossification center of a long bone is located in the diaphysis, which is the long, cylindrical shaft of the bone. The epiphysis refers to the rounded ends of the bone, and the medullary cavity is the central hollow space within the diaphysis. The epiphyseal cartilage, also known as the growth plate, is located at the ends of the bone where new bone tissue is formed during growth and development. However, the primary ossification center is where the bone tissue first begins to form in the developing fetus and is therefore located in the diaphysis.

The Primary Ossification Center of a Long Bone Is Located