# of heartbeats per breath
___% of what you breath is oxygen
Parts of the Respiratory System
Mouth, Nose, Larynx, Trachea, Bronchi, Bronchioles, Lungs, Alveoli
Function of the Respiratory System
Supplying Blood w/ oxygen and remove CO2; Vocalize; Water balance
Made of rings of cartilage; attached to tongue includes epiglottis
trap door that stops food from going into lungs
Directs food, dangles in back of throat
In larynx; made of cartilage; thicker=deeper voice; testosterone makes them thicker
Lower Respiratory Track
Trachea and Lungs
Cartialge and muscle; horse shoe shaped rings; cartilage keeps it open
Narrower, longer, two lobes
Short, fat, 3 lobes
The passages that branch from the trachea and direct air into the lungs; Right and left
Straight across things
More vertical, bigger
smallest at end of bronchis
Only place you can exchange gasses; made of squamous cells; make up the lungs
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