Respiratory System Quiz

What is the muscle under the lungs that moves down to expand the lungs?

• Trachea

• Diaphragm

• Larynx

• Bronchus

What helps to filter out dirt and pollen from the air in the nasal passages?

• Cilia and mucus

• Epiglottis

• Capillaries

• Alveoli

Which part of the respiratory system is commonly called the voice box?

• Trachea

• Bronchus

• Larynx

• Farex

What is the flap of connective tissue that covers over the larynx during swallowing or eating?

• Capillaries

• Alveoli

• Cilia

• Epiglottis

Where does oxygen diffuse into the capillaries and carbon dioxide diffuse into the alveoli?

• Larynx

• Trachea

• Bronchus

• Alveoli

What is the rigid tube of cartilage that leads into the left and right bronchus?

• Larynx

• Trachea

• Farex

• Diaphragm

What is the tiny air sac where oxygen diffuses into the capillaries?

• Cilia

• Capillaries

• Alveoli

• Epiglottis

What stands open during breathing to allow air in, but closes during swallowing or eating?

• Epiglottis

• Cilia

• Alveoli

• Capillaries

Where does the air and oxygen enter into the nasal passages?

• Farex

• Larynx

• Mouth

• Nose

What is the part of the respiratory system that makes sound when air passes over the vocal cords?

• Trachea

• Farex

• Diaphragm

• Larynx