Skeleton

Question 1

What are the key functions of the skeleton?

Answer 1

• production of blood cells
• storage of minerals
• protection of vital organs
• muscle attachments
• formation of joints for movement

Question 2

What is produced in the bone marrow?

Answer 2

• platelets
• red blood cells
• white blood cells

Question 3

What do platelets do?

Answer 3

Help clot blood when you are cut

Question 4

What do red blood cells do?

Answer 4

Transport oxygen to working muscles

Question 5

What do white blood cells do?

Answer 5

Help fight infections

Question 6

What does calcium and phosphorus do?

Answer 6

Stored in bones to help strengthen them

Question 7

Give an example where the skeleton protects vital organs

Answer 7

Your skull protects your brain if an opponent follows through wildly with their hockey stick, and it hits you in a game.

Question 8

Where does movement occur?

Answer 8

Joints of the skeleton

Question 9

How does the skeleton aid movement?

Answer 9

Bones provide a place for the muscles to attach to, so that when they contract the pull the bones to cause movement

Question 10

Do bones act as levers?

Answer 10

Yes

Question 11

What do long bones do?

Answer 11

Aid movement by working as levers

Question 12

Give an example if some long bones:

Answer 12

• humerus

* femur

Question 13

Why are short bones useful?

Answer 13

They are weight bearing and provide support

Question 14

Give an example of use for short bones:

Answer 14

Supporting body weight during a handstand

Question 15

Give an example of use for long bones:

Answer 15

Work as levers root increase the pace of a ball when kicked

Question 16

Why are flat bones useful?

Answer 16

They provide protection and a broad surface for muscles to attach to

Question 17

Give an example of use for flat bones:

Answer 17

The cranium protects the brain if hit in the head with a ball

Question 18

Why are irregular bones useful?

Answer 18

Irregular bones provide protection and a place for muscle attachment

Question 19

Give some examples of short bones

Answer 19

• the carpals

* the tarsals

Question 20

Give example of flat bones:

Answer 20

• the cranium
• the ribs
• the scapula

Question 21

Give an example of irregular bones:

Answer 21

The vertebrae

Question 22

Give an example of use for irregular bones:

Answer 22

Muscles attached to the vertebrae allow a hockey player to bend their back low to dribble a ball.

Question 23

What is a joint?

Answer 23

A joint is the place where 2 or more bones meet. It is a place where movement can occur

Question 24

Where are hinge joints located?

Answer 24

• knee
• elbow
• ankle

Question 25

What are the movements at a hinge joint?

Answer 25

• flexion

* extension

Question 26

Where are ball and socket joints located?

Answer 26

• hip

* shoulder

Question 27

What movements can be made at a ball and socket joint?

Answer 27

• flexion
• extension
• rotation
• circumduction
• abduction
• adduction

Question 28

Where is the pivot joint located?

Answer 28

At the neck (atlas and axis)

Question 29

What movements can be made at a pivot joint?

Answer 29

Rotation

Question 30

Where can a condyloid joint be located?

Answer 30

Wrist

Question 31

What movements can a condyloid joint make?

Answer 31

• flexion
• extension
• circumduction

Question 32

What is flexion?

Answer 32

The angle at a joint decreases

Question 33

At what joints can flexion occur?

Answer 33

• hinge
• ball and socket
• condyloid

Question 34

Give an example of flexion:

Answer 34

Lower part of your leg gets closer to the upper part of your leg as the angles at the joint decrease.

Question 35

What is extension?

Answer 35

The angle at a joint decreases

Question 36

At what joints does extension occur?

Answer 36

• hinge
• ball and socket
• condyloid

Question 37

Give an example of when extension happens at a joint;

Answer 37

At the knee when following through after kicking a ball.

The lower part of your leg gets further away from the upper part of your leg as the angle at the joint increases.