The respiratory system

It has two passageways - one for air and one for food.

• lungs

• diaphragm

• throat

• epiglottis

It is a tissue that closes over the trachea when you swallow.

• diaphragm

• epiglottis

• pharynx

• bronch

It is the part of the respiratory system that contains the voice box (vocal cords).

• epiglottis

• lungs

• nose

• larynx

It directs air into the lungs.

• trachea

• pharynx

• alveoli

• nose

Air enters the lungs through ...

• the nose

• the larynx

• the bronchi and bronchioles

• the diaphragm

Where does oxygen enter the bloodstrem?

• In the lungs

• In the trachea

• In the pharynx

• In the diaphragm

The muscle thst separates the lungs from the abdomen is called

When we breathe in

• the diaphragm relaxes and the ribcage contracts

• the diaphragm contracts and the rib cage expands

• the diaphragm contracts and the rib cage contracts

• the diaphragm relaxes and the rib cage expands

The respiratory system is connected with other systems.

• true

• false

The nervous system is connected with the respiratory system.

• true

• false