Respiratory system

The respiratory system begins in the nose.

• True

• False

The vocal cords are in the nasal cavity.

• True

• False

The trachea is a tube that connects the throat and the lungs.

• True

• False

There are two alveoli in the lungs.

• True

• False

Oxygen goes from the alveoli into the blood.

• True

• False

The air we breathe in is not the same as the air we breathe out.

• True

• False

The main function of the respiratory system is gas exchange. (O - CO2)

• True

• False