respiratory system

Front

What is breathing out or the exhalation of breath called?

Back

Expiration

Front

What is the site of gas exchange?

Back

alveoli

Front

What does the trachea bifurcate into?

Back

main bronchi

Front

What is the opening between vocal cords called?

Back

glottis

Front

What are the tiny sacs of lung tissue specialized for the movement of gases between air and blood called?

Back

alveoli

Front

What structure will direct air into the lungs? Options: lungs, trachea, bronchi, alveoli

Back

bronchi

Front

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

Back

In the alveoli

Front

What is the dome-shaped muscle beneath the lungs that helps us breathe called?

Back

diaphragm

Front

What do we let out when we exhale?

Back

Carbon dioxide

Front

What do we take in when we inhale?

Back

oxygen