Breathing and Gas Exchange

Front

What are the air sacs in the lungs where gas exchange occurs?

Back

Alveoli

Front

Which muscle contracts during inhalation?

Back

Diaphragm

Front

What happens to the rib cage during inhalation?

Back

It rises up.

Front

What is the primary function of the alveoli?

Back

Site of gas exchange.

Front

What gas do we inhale?

Back

Oxygen

Front

What gas do we exhale?

Back

Carbon dioxide

Front

What is the role of the bronchus?

Back

Conducts air to the lungs.

Front

What happens to the diaphragm during inhalation?

Back

It contracts.

Front

What is the function of the trachea?

Back

It connects the throat to the lungs.

Front

What is the process of taking air into the lungs called?

Back

Inhalation