lungs and respiration Flashcards
where is the nasopharynx portion
nasal cavity to uvula
nasal cavity function
-increases SA
-air flows through-picks up particles
-warms air
where is the oropharynx portion
uvula to hyoid
function of epiglottis
flaps and prevents food from entering trachea and lungs
where is the laryngopharynx portion
hyoid bone to larynx
what structures produce sound
ventricular fold, vocal fold, and thyroid cartilage
function of ventricular fold in larynx
seal top of larynx to build pressure to produce sound
how to vocal fold make sound
tighten - voice up
loosen - voice down
function of cartilage rings on trachea, primary, secondary, tertiary bronchi
keep airway open
function of carina
causes coughing reflex
how much of the trachea has cartilage rings
2/3
other 1/3 is for esophagus so food can pass down
what does the visceral pleura line and how many divisions
lines inside of cavity
one division
what does the parietal pleura line and how many divisions
lines inside of cavity
4 divisions
-cervical pleura
-costal pleura
-mediastinal pleura
-diaphragmatic pleura
what directions does the rib cage expand for breathing
anteroposterior (like a pump handle)
mediolateral (bucket handle moves up)
what does diaphragm do during exhalation and inhalation
exhalation - relax
inhalation - contract
