Question

Epiphysis and diaphysis of bone is

• A. End and shaft of long bone respectively
• B. Shaft and end of long bone respectively
• C. Head and neck of long bone
• D. Spongy bone only

Answer 1

The correct option is A End and shaft of long bone respectively

Epiphysis and Diaphysis of bone are the end and shaft of long bone respectively. The epiphysis is the rounded end of a long bone. Between the epiphysis and diaphysis lies the metaphysis. At the joint, the epiphysis is covered with articular cartilage. The epiphysis is filled with red bone marrow, which produces erythrocytes. The diaphysis is the main or midsection of a long bone. It is made up of cortical bone and usually contains bone marrow and adipose tissue. It is a middle tubular part composed of compact bone, which surrounds a central marrow cavity, which contains red or yellow marrow. In diaphysis, primary ossification occurs.

Hence the correct option is A.