ANATOMY

Detailed explanation-1: -The diaphysis is the tubular shaft that runs between the proximal and distal ends of the bone. The hollow region in the diaphysis is called the medullary cavity, which is filled with yellow marrow. The walls of the diaphysis are composed of dense and hard compact bone.

Detailed explanation-2: -The shaft of a long bone is called the diaphysis.

Detailed explanation-3: -epiphysis, expanded end of the long bones in animals, which ossifies separately from the bone shaft but becomes fixed to the shaft when full growth is attained. The epiphysis is made of spongy cancellous bone covered by a thin layer of compact bone.

Detailed explanation-4: -The diaphysis is the shaft portion of a long bone with cortical tissue. It has bone marrow and adipose tissue.