Site of gas exchange between the atmosphere and the blood
Covers the opening to the trachea when food is being swallowed
Allows passage of both food and air (throat)
Upper end of the trachea where sounds are produced (voice box)
The tube air passes through from the pharynx (windpipe)
Cluster of tiny air sacs where oxygen diffuses into the blood and carbon dioxide diffuses out of the blood
Diffuses into the blood
Diffuses out of the blood
Taking air into the lungs; ribs move outward and diaphragm puses down
Expelling air form the lungs; rib muscles relax and diaphragm elevates
Controlled by the brain monitoring the levles of CO2 in the blood
Muscle, Large, flat muscle at the bottom of the chest cavity that helps with breathing
Lining around the lungs
Branches off the trachea
Function of the Respiratory System
Transport gases to and from the cardiovascular system
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