G5_Human_System_1

The main purpose of the respiratory system is to helps us breathe.

• True

• False

The respiratory system brings in _______from the air.

• carbon dioxide 二氧化碳

• fresh air新鲜空气

• oxygen氧气

The respiratory system removes_______from our body.

• carbon dioxide二氧化碳

• oxygen 氧气

• fresh air 新鲜空气

The_______protects your lungs.

• bone

• rib cage

• heart

Inhale means to__________

• breathe in

• breathe out

Exhale means to _________

• breathe in

• breathe out

The left lung is a little bit smaller than the right lung, because_______________________________.

• The right lung is more important.

• The left lung has other jobs.

• The left lung needs to make space for the heart.

What's the other name for trachea?

• pipe

• windpipe

• foodpipe

trachea

• 气管

• 食管

• 管道

diaphragm

• 膈肌

• 肚子

• 肺