The shaft of a long bone is called the diaphysis. The narrow shaft transitions into regions called metaphyses, which terminate in broad, substantial areas of bone called epiphyses. These epiphyses form joints with other bones.Continue Reading
The shaft is made up of compact bone that is covered with a strong membrane called the periosteum. Down the center of the shaft is a hollow that contains bone marrow.
Long bones facilitate skeletal mobility and include the femur, fibula, tibia, ulna, radius and humerus. The phalanges and clavicles are also classified as long bones, even though they are smaller in comparison to the limbs.Learn more about Bones
The medullary cavity is the site in a human long bone containing red or yellow bone marrow, depending on the age of the person. At birth, the marrow is red. As the individual grows older, the red marrow is replaced with yellow marrow.Full Answer >
The coxal, or hip bone consists of the pubis, the ilium, and the ischium, as reported by Teach Me Anatomy. Those three bones are distinct and separate at birth but fuse together as people enter young adulthood.Full Answer >
Bone is made mostly of collagen and calcium. This combination works to make the bones strong and flexible at the same time, enabling them to be protective and rebound from stress fractures.Full Answer >
According to a Time article authored by Lisa LaValle Overmyer, people who suffer from low bone density can keep their bones strong by eating certain foods and exercising. Human bones are being continually broken down and rebuilt, but after the age of 30, this process slows down quite a bit. Bones are broken down, and they are not built back up as quickly.Full Answer >