GENERAL HISTOLOGY

BONE

PARTS OF A BONE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The red marrow is located
A
in all bones
B
in the proximal epiphysis of long bones
C
in the diaphysis
D
in the articular cartilage
Explanation: 

Detailed explanation-1: -Red marrow is found mainly in the flat bones, such as the hip bone, sternum (breast) bone, skull, ribs, vertebrae, and shoulder blades, as well as in the metaphyseal and epiphyseal ends of the long bones, such as the femur, tibia, and humerus, where the bone is cancellous or spongy.

Detailed explanation-2: -The proximal epiphysis is the end of the long bone closest to the center of the body. The distal epiphysis is located at the end of the long bone that is farther away from the center of the body.

Detailed explanation-3: -The epiphyses, which are wider sections at each end of a long bone, are filled with spongy bone and red marrow. The epiphyseal plate, a layer of hyaline cartilage, is replaced by osseous tissue as the organ grows in length.

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