pharynx Flashcards
the pharynx is considered to be part of what 2 systems?
digestive and respiratory
where are the borders of the pharynx?
funnel shaped fibromuscular tube from base of skull to inferior border of cricoid cartilage
what are the 3 parts of the pharynx?
nasopharynx- posterior nasal cavity
oropharynx- posterior oral cavity
laryngopharynx- posterior larynx
the nasopharynx communicates with the nasal cavity through the _______ and the oropharynx through the _________?
choanae; pharyngeal isthmus
what are the 4 boundaries of the nasopharynx?
superior- roof of pharynx
inferior- soft palate
anterior- posterior border of inferior nasal concha
posterior- posterior wall of pharynx
where are the pharyngeal tonsils (adenoids) located?
posterior wall of nasopharynx
the pharyngotympanic (auditory) tube opens into the?
lateral wall of the nasopharynx
what is the pharyngotympanic tube limited above by?
torus tubarius (tubal elevation)
the pharyngotympanic tube connects the nasopharynx with what?
middle ear (tympanic cavity)
what equalizes pressure between the nasopharynx and tympanic cavity?
pharyngotympanic tube
what is a small tonsil that lies immediately behind the opening of the pharyngotympanic tube?
tubal tonsil
what is a fold that descends from the torus tubarius to the wall of the pharynx?
salpingopharyngeal fold- deep to the fold is the salpingopharyngeus muscle
what are the boundaries of the oropharynx?
superior- soft palate
inferior- superior border of epiglottis
anterior- palatoglossal fold
posterior- posterior wall of pharynx
where does the oropharynx lie?
at the C2 & C3 levels
what tonsils are found in the oropharynx?
palatine tonsils
what are the 2 folds of the oropharynx?
palatoglossal
palatopharyngeal
the space between the 2 folds of the oropharynx is called?
tonsillar fossa
which tonsils are the ones most frequently removed during childhood?
palatine tonsils
the tonsillar ring is a circular arrangement of tonsils around the oropharynx which is formed by which 4 tonsils?
lingual, palatine, tubal, pharyngeal- first line of defense against infection
what are the boundaries of the laryngopharynx?
superior- superior border of epiglottis
inferior- lower border of cricoid cartilage
anterior- posterior larynx
posterior- posterior wall of pharynx
what is the laryngeal inlet?
the opening into the larynx found within the laryngopharynx
“when something goes down the wrong tube”
the laryngeal inlet is bounded laterally by the ________ and inferiorly by the ________
aryepiglottic folds; interarytenoid notch
what is the piriform fossa?
a recess in the anterior wall of the laryngopharynx
foreign objects or food can get caught where?
piriform fossa
