The Main Shaft of a Long Bone is Known as Its

Question

The main shaft of a long bone is known as its _______.
A) epiphysis
B) metaphysis
C) cartilage
D) diaphysis

Accepted Answer

The diaphysis is the long, cylindrical main shaft of a long bone. It is typically composed of compact bone tissue and contains the medullary cavity, which houses bone marrow. The epiphysis refers to the rounded ends of the bone, while the metaphysis is the region where the diaphysis and epiphysis meet. Cartilage refers to a type of connective tissue found in areas such as the joints and ear.