Respiratory System
Tiny sacs of lung tissue specilalized for 
the movement 
of gasses between air and blood.
alveoli
bronchi
lungs
bronchioles
respiration
bronchi
alveoli
bronchioles
The passages that branch from the tracheaand direct air into the lungs.
voice box; passageway for air moving from 
pharynx to trachea; contains vocal cords.
larynx
pharynx
trachea
lungs
throat; passageway for food to the esophagus 
and air to the larynx.
 larynx
voice box
trachea
pharynx
the exchange of oxygen and carbon dioxide 
between living cells and their environment
 including breathing and cellular respiration.
respiratory system
 alveoli
respiration
lungs
windpipe; tube through which 
air moves.
 pharynx
esophagus
lungs
trachea
system responsible for taking in oxygen 
and releasing carbon dioxide using the lungs.
respiratory system
respiration
lungs
pharynx
Flat muscle at the bottom of the chest 
cavity that helps with breathing.
diaphragm
lungs
epiglottis
ribs
These are the smallest branches of the 
bronchi.
alveoli
bronchioles
bronchi
lungs
the chemical reactions that let
 you get energy from food
 Respiration
 Cellular Respiration
 The Respiratory System
 Oxygen
The main passageway to the lungs.
 the mouth
 the bronchi
 the nose
 the pharynx
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