PE skeleton revision

Question 1

Key functions

Answer 1

1. production of blood cells
2. minerals
3. protection
4. muscle attachment
5. movement

Question 2

Where is the blood cell produced?

Answer 2

Bone marrow

Question 3

Why is the production of blood cells important?

Answer 3

1. Platelets in red blood cell help clotting if you are cut.
2. red blood cells transport oxygen to the working muscles.
3. White blood cells help fight infection.

Question 4

what are the two types of minerals stored in the skeleton and whuy?

Answer 4

Calcium and Phospherus - to help strengthen them.

Question 5

Name an example where protection is important and where it is.

Answer 5

Your skull protects your brain - if an opponent follows through wildly with their hockey stick and hits you on the head during a game.
The rib protects vital organs like the ribs and the heart - if your on a trampoline and do a front landing.

Question 6

Where does movement occur and how?

Answer 6

In the joints of the skeleton - pull bones and cause movement when contracting.

Question 7

What do levers in the body allow?

Answer 7

To increase the force it can generate or increase speed of the movement.

Question 8

how does the skeletal system protect the body?

Answer 8

by providing a hard structure over the organ needing protection.