Respiratory System

Tiny sacs of lung tissue specialized for the movement of gases between air and blood are called __________.

• lungs

• bronchi

• alveoli

• diaphragm

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

NGSS.MS-LS1-3

Tiny, hairlike projections in the airway that move in a wavelike manner are called __________.

• alveoli

• cilia

• trachea

• lungs

The windpipe, a passage through which air moves in the respiratory system is also called the ___________.

• trachea

• lungs

• larynx

• bronchi

The passages that direct air into the lungs are called _________.

• lungs

• trachea

• bronchi

• alveoli

What can you infer about the function of the ribcage?

• It protects the lungs.

• It helps the heart pump blood.

• It delivers oxygen from the lungs to the bloodstream.

• It connects the trachea to the lungs.

What word(s) best describes the function of the trachea?

• Pumping station

• Entrance point

• Muscle

• Passageway

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

• In the heart

• In the trachea

• In the alveoli

• In the nasal passages

The walls of the alveoli and capillaries are permeable. What does this mean?

• Substances can pass through them.

• They are made of muscle.

• They are located throughout the body.

• They are made of bone.

Tags

NGSS.HS-LS1-3

NGSS.HS-LS2-3

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.

What organ of the respiratory system is in blue.

• pharynx

• trachea

• larynx

• epiglottis