Respiratory system

Respiratory organ in our body is

• kidney

• lungs

• spleen

• liver

tiny sacs of lung tissue specialized for the movement of gases between air and blood.

• lungs

• bronchi

• alveoli

• diaphragm

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-3

the windpipe; a passage through which air moves in the respiratory system.

• trachea

• lungs

• larynx

• bronchi

Which of the following statements is true?

• Your lungs can store several hours' worth of oxygen.

• Your body can't store oxygen at all.

• Your body stores oxygen in your bloodstream.

• Your body needs carbon dioxide to function properly.

What can you infer about the function of the ribcage?

• It protects the lungs.

• It helps the lungs pump oxygen.

• It delivers oxygen from the lungs to the bloodstream.

• It connects the trachea to the lungs.

Where does the transfer of oxygen into the bloodstream take place?

• In the heart

• In the trachea

• In the alveoli

• In the nasal passages

What organ of the respiratory system is in blue.

• pharynx

• trachea

• larynx

• epiglottis

What happens when your diaphragm relaxes and moves upward?

• Your lungs deflate and you breathe out.

• Your lungs inflate and you breathe in.

• Your alveoli transfer oxygen to your bloodstream.

• Your bloodstream transfers carbon dioxide to your alveoli.

When you breathe, your lungs take in ___ and remove ___. 

• air/oxygen
• oxygen/carbon dioxide 
• carbon dioxide/waste 
• waste/air 

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-3

Flap of tissue that covers the opening to the windpipe during swallowing

• Pharynx

• Trachea

• Epiglottis