Skeletal/Muscular Systems
Gas Exchange/Breathing
1

True Or False: Hinge Joints move back and forwards?

True. Hinge Joints do move backwards and forwards.

1

What is breathing in called?

It is called inhaling


1

What is a joint?

Where 2 bones make contact

1

 What happens when you breath in?

The diaphragm contract, moving the ribs upwards or downwards


1

What does the cartilage do? 

It protects joints and bones. It also makes movement smooth.

1

What is breathing out called?

It is called exhaling.

1

True or False: The ball and socket only moves forwards and backwards?

False, the ball and socket moves in ALL directions.

1

What happens when you breath out?

The diaphragm relaxes, allowing the ribs to go downwards or inwards. 

1

How many bones are attached in a ligament and what does it do?

2 bones are attached.

It stops the joints from falling apart.

1

Give 3 adaptations of the alveoli. 

Big surface area, thin walls and it is moist.

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