Skeletons

Question 1

List and describe three types of bone fracture.

Answer 1

Green stick:The bone is bent but not broken.

• Simple fracture:The bone is broken but the skin is intact.
• Compound fracture:(open fracture) the broken ends of the bone sticks out through the skin.

Question 2

Explain how the embryo skeleton changes from being cartilage into bone.

Answer 2

-Minerals are deposited into the cartilage (calcium phosphate). The cartilage becomes ossified (turned into bone).

Question 3

Why do you think there is a higher incidence of osteoporosis in Scandinavia?

Answer 3

• Higher population of elderly women

- Higher consumption of Animal proteins

Question 4

What animals have internal skeletons

Answer 4

Fish,Amphibians,reptiles,birds and mammals

Question 5

Where can you find cartilage on your body?

Answer 5

• the tip of your nose
• your ear lobes
• at the end of our ribs

Question 6

What are the functions of skeletons?

Answer 6

• Support
• protection
• muscle attachments

Question 7

What group in society are more vulnerable to osteoporosis?

Answer 7

Elderly people

Question 8

What is osteoporosis?

Answer 8

Soft bones - more susceptible to fractures,which may happen in a fall

Question 9

Why do children need to drink milk or eat cheese to make their bones strong?

Answer 9

Children need more cartilage at the ends of their bones compared to adults because they are still growing.

Question 10

What is meant by the term periosteum?

Answer 10

A tough membrane covering outer surface of bone