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Respiratory System

Across
Throat, passageway for food to the esophagus and air to the larynx
Main organs of the respiratory system
The special, normal, or proper activity of an organ or part
System responsible for taking in oxygen and releasing carbon dioxide using the lungs
Gas that enters the body through the lungs
A flap of cartilage that covers the windpipe while swallowing
Tiny sacs of lung tissue specialized for the movement of gases between air and blood
One way air gets in and out of the body.
Down
One way air gets in and out of the body.
Two short branches located at the lower end of the trachea that carry air into the lungs
Red, swollen or painful
Large, flat muscle at the bottom of the chest cavity that helps with breathing
The bones in the chest that protect the heart and lungs
Waste gas released by body cells
Two or more atoms joined together
Allows air to bass to and from lungs
Not usual, not typical, strange
The hairlike projections on the outside of cells that move in a wavelike manner