exam

sphenoid sinus

humidifies protects cleans warms

pharynx

back of the throat allows swallowing

epiglottis

closes airway

larynx

voice box

frontal sinus

produces mucus humidifys air

nasal cavity

warms air, resonating sound, smell

oral cavity

food intake, speech, salivary glands

Trachea

always open due to cartilge rings

bronchus

carries air to and from lung

plural cavity

protects lungs

alvcoli

air sacs, oxygen exchange occurs.

bronchiole

branches in the lung

right lung

larger 3 lobes deoxygenated blood

left lung

Smaller lung with two lobes oxygenated blood

Diaphragm

Large, flat muscle at the bottom of the chest cavity that helps with breathing