Anatomy Assignment 6: Skeletal

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

Within compact bone, a central canal is found at the center of which structure?

An osteon

What is the function of red bone marrow?

Blood cell production

Which hormone inhibits osteoclasts and stimulates osteoblasts to lower blood calcium levels?

Calcitonin

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

Calcium

Which osseous tissue is found on the surface of bones and composed of tightly arranged parallel osteons?

Compact

Where does bone formation occur during endochondral ossification?

Hyaline cartilage model

What is the calcium-phosphate salt deposited within bone called?

Hydroxyapatite

Which type of bone growth occurs within cartilage and results in bone elongation?

Interstitial

The bones of the skull form by which type of ossification?

Intramembranous

Which bone cells produce the soft organic bone matrix?

Osteoblasts

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

Swimming

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

at different rates