Front

tiny air sacs of the lungs where oxygen and carbon dioxide are exchanged

Back

alveoli

Front

the tube connecting the lungs and the larynx

Back

trachea

Front

The two tubes connecting the lungs and the trachea

Back

bronchi

Front

the area of the throat that contains the vocal cords and produces vocal sounds

Back

Larynx

Front

the collection of organs whose primary function is to take in oxygen and expel carbon dioxide

Back

Respiratory System

Front

the passage from the mouth to the larynx and the esophagus

Back

pharynx

Front

the exchange oxygen and carbon dioxide between living and cells in their environment

Back

respiration

Front

SARS (severe acute respiratory syndrome), asthma, and emphysema are?

Back

respiratory diseases

Front

caused when your brain thinks you need more oxygen

Back

Yawn

Front

when something irritates your nose

Back

Sneeze