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: -The diaphyses (singular: diaphysis), sometimes colloquially called the shafts, are the main portions of a long bone (a bone that is longer than it is wide) and provide most of their length.

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

Detailed explanation-5: -may involve the shaft (diaphysis) or the ends (epiphyses) of the long bones. Sometimes the bone marrow of the diaphysis is primarily involved, and in osteomyelitis it is usually the compact (cortical) bone of the shaft that undergoes necrosis.