Respiratory System

........ is the process of taking in air into our body and giving it out again.

• Breathing

• Resporatory

• Respiration

• Inhaled

........ our nostrils removes dust from the air we breathe in.

• The Nose

• Windpape

• The Tracea

• The hairs

The air then moves down ......

• Air tube

• Windpape

• Lung

• Air sacs

Our windpape branches to the left and right into two smaller ......

• Air sacs

• Tracea

• Nose

• Air tubes

Each of these air tubes leads to one of ......

• Respiratory

• Nose

• Lungs

• Air sacs

When the air we breathe in reaches our ....... , oxygen passed through the wall of the sacs into our blood.

• Air sacs

• Lungs

• Air tube

• Windpape

Our blood then carries the .......... to all parts of our body.

• Carbon dioxide

• Air

• Water

• Oxygen

.......... is removed from our body when we breathe out.

• Oxygen

• Air

• Dust

• Carbon dioxide

When we .......... , our ribcage moves outward and upwards.

• Breathe in

• Repiration

• Breathe out

• Breathe in and out

The air we Breathe in is called .......

• Breathe out

• Exhaled

• Expaired

• Inhaled