Anatomy and Physiology- Hwk. 4

A __________ fracture is one in which the bone is broken into three or more pieces.

Comminuted

Where does bone formation occur during endochondral ossification?

Hyaline cartilage model

During the healing of a bone fracture, a hard callus is formed by ___________.

Osteoblasts

During fracture healing, cartilage is deposited in granulation tissue to form which of the following?

a soft callus

Which mineral is most important throughout life to assist in maintaining strong bones?

calcium

Osseous tissue matrix is composed of __________.

calcium phosphate

Mineralization is a process that extracts __________ and __________ from the blood plasma and deposits it into bone.

calcium; phosphate

Which of the following is not considered a weight bearing activity?

swimming

Trusses and arches, which help form an internal scaffolding network, are found in __________.

trabecular bone

At which of the following ages would calcium loss from bone be more than calcium deposits into bone, even when a high calcium diet is eaten?

50 years old

Bones in the legs, arms, spine and pelvis grow __________.

at different rates

__________ is/are found in compact bone, but not spongy bone

central canals