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Two pairs of vocal chords are found in the larynx. Which pair are the true vocal chords (superior or inferior)?
Forms the adam's apple
shaped like signet ring
a "lid" for the larynx
What is the significance of the fact that the human trachea is reinforced with cartilaginous rings?
Prevents collapse during pressure changes occurring during breathing.
What is the significance of the fact that the rings are incomplete posteriorly?
allows for a food bolus traveling down the posterior esophagus to bulge.
What is the function of the pleural membranes?
produce a serous fluid that reduces friction during breathing movements and helps to hold the lungs tightly to the thorax wall which keeps the lungs inflated.
connects the larynx to the primary bronchi
site of tonsils
food passageway posterior to the trachea
covers glottis during swallowing of food
epiglottis "guardian of airways"
contains the vocal chords
nerve that activates the diaphragm during inspiration.
pleural layer lining the walls of the thorax
site from which oxygen enters the pulmonary blood
connects the middle ear to the nasopharynx
opening between the vocal folds
increases air turbulence in the nasal cavity
separates the oral cavity from the nasal cavity
Function of external nares(nostrils)
warm air on inhalation and remove moisture on inhalation.
pharynx has how many regions and what are they?
The pharynx has 3 regions, Nasopharynx, Oropharynx, and laryngopharynx.
UVULA "punching bag" from soft palate upward.
Only an air passageway.
ciliated pseudostratified columnar epithelium simple.
inferior to Nasopharynx.
extends from soft palate (attaches) to hyoid bone.
food and air pass through
Passageway where both food and air need to make a decision.
provides open airway
routes air and food into the proper channels
nasal passage way amplifies.
accentuate high pitch(helps eliminate bowels)
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