The collar that forms around the opposing ends of bone fragments is called a(n)
A)osteon.
B)epiphysis.
C)hematoma.
D)internal callus.
E)external callus.

Question

Quizplus · Accepted Answer

The collar that forms around the opposing ends of bone fragments is called an external callus. The external callus is composed of hyaline cartilage and bone and forms around the outside of the bone fragments. The internal callus forms inside the medullary cavity between the ends of the fragments. The epiphysis is the rounded end of a long bone that forms a joint with another bone. An osteon is the basic unit of compact bone tissue. A hematoma is a localized bleeding outside of blood vessels.

The Collar That Forms Around the Opposing Ends of Bone