Create an account
function of the respiratory mucosae
secrete a quart of mucus each day, traps dust, bacteria, and other debris, secretes natural antibioties, adds humidity to the air, cilia move so that contaminated mucus is swallowed and digested
provides swithching mechanism depending if food or air is in the throat(epiglottis)
function of the larynx
9 cartilages that make up the larynx
thyroid, cricoid, arytenoid(2), cuneiform (2), corniculate (2), epiglottis
functions of the epiglottis
when breathing, epiglottis is upright- when we swallow, epiglottis flips back to cover the opening to the laryngeal inlet, which is the opening to the trachea
structure involved in sound production
vocal folds vibrate which produces sound as air comes up from the lungs
secretes mucus and cilia to move particles to the throat sothey can be coughed up and expelled or swallowed
conducting portion of the bronchial tree
right and left primary bronchi are formed when the trachea bifurcates(splits)
surface features of the lungs
root, costal surface, apex, base, hilus,cardiac notch, aortic impression,
external intercostal muscles contract-lifts the ribcage and pulls the sternum forward' increases depth and width of thoracic cavity
during excerise; other muscles act to expand the thoracic cavity more,increasing lung capacity
4 factors affect gas exchange between blood and alveoli
differences in partial pressures, distance across respiratory membrane, gases are soluble in lipids, surface area
chemoreceptors for oxygen, hydrogen, and carbon dioxide are located where?
medulla and the great vessels of the neck
usually confined to the lungs, can affect the skeleton, affects the vertebral column, can also move into muscles of the pelvis and thigh
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together