The medullary cavity of bones contains
A)compact bone.
B)osteons.
C)cartilage.
D)marrow.
E)periosteum.

Question

Quizplus · Accepted Answer

The medullary cavity, also known as the marrow cavity, is a space within the diaphysis (or shaft) of a long bone that contains marrow. Marrow can be red or yellow, and is responsible for producing blood cells, storing fat, and providing support for bone growth and repair. Therefore, the best choice is D, marrow. The other options are incorrect: compact bone and osteons make up the structure of bone tissue, cartilage is a type of connective tissue found in joints, and periosteum is a thin, fibrous membrane that covers the outside of bone.

The Medullary Cavity of Bones Contains