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The Respiratory System

Across
broad lower part of each lung; rests on diaphragm
air that remains in the lungs after the most forceful expiration
usually about 12 to 18 breaths a minute; much faster during exercise
exchange of gases between the air in the lungs and in the blood
Tube about 11 cm (4.5 inches) long that extends from larynx into the thoracic cavity
The nose, pharynx and larynx are part of what respiratory tract?
refers to the actual use of oxygen by the cells in a process called metabolism
amount normally breathed in or out with each breath
Each bronchus branches into smaller and smaller tubes eventually leading to _____
Down
narrow upper part of each lung, under collarbone
What lung has three lobes?
Located just below the pharynx and is composed of several pieces of cartilage
exchange of gases between the blood and the cells in the body
Specialized membrane that lines the air distribution tubes in the respiratory tree
Volumes of air exchanged in breathing can be measured with a what?
What lung has two lobes?
responds to changes in carbon dioxide, oxygen, and blood acid levels-located in carotid and aortic bodies
Olfactory receptors are located in the ____
Acts as a "hallway" or passageway for air & food