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9 Cards in this Set

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OROPHARYNX
B. Oropharynx

1. Extends from the soft palate to the superior border ofthe epiglottis; its
lateral and posterior walls are formed by the pharyngeal constrictors,
and its anterior wall is formed by the posterior part ofthe tongue infe-
riorly, and opens into the faucial isthmus superiorly
FAUCIAL ISTHMUS

-what does it connect?
-bounded by?
2. Faucial isthmus

a. Region connecting tlie oropharynx with the oral cavity; it is bounded
by the palatopharyngeal and palatoglossal arches and contains the
palatine tonsils
FAUCIAL ISTHMUS

PALATOPHARYNGEAL ARCH
2. Faucial isthmus

b. Palatopharyngeal arch: posterior arch formed by a pair of folds ex-
tending from tlie soft palate to the lateral pharyngeal wall; each fold
contains a palatopharyngeus muscle
FAUCIAL ISTHMUS

PALATOGLOSSAL ARCH
2. Faucial isthmus

c. Palatoglossal arch: anterior arch formed by a pair of folds extend-
ing from the soft palate to the sides ofthe tongue; each fold contains
a palatoglossus muscle
FAUCIAL ISTHMUS

PALATINE TONSILS
2. Faucial isthmus

d. Palatine tonsils: located laterally within the faucial isthmus, between
the palatopharyngeal and palatoglossal arches; they are prominent
in children but involuted in the adult
LARYNGOPHARYNX

-extends from?
-lateral and posterior walls?
-anterior wall opens into?

-inferiorly how is the anterior wall formed?
. Laryngopharynx
1. Extends from the superior border ofthe epiglottis to the esophagus; its
lateral and posterior walls are formed by the middle and inferior pha-
ryngeal constrictors and its anterior wall opens into the laryngeal aditus
superiorly and, inferiorly, is formed by the mucosa covering the poste-
rior aspect ofthe larynx and tlie mucosa lining the piriform recesses,
depressions on either side ofthe larynx
LARYNGOPHARYNX

-piriform recesses
C. Laryngopharynx

2. Clinical note: bits of food or swallowed foreign objects may lodge in the
piriform recesses
PHARYNGEAL CONSTRICTORS

SUPERIOR PHARYNGEAL CONSTRICTOR

ORIGIN
1. Superior pharyngeal constrictor

a. Origin: side ofthe tongue and the pterygomandibular raphe; the
pterygomandibular raphe extends from the pterygoid hamulus to the
posterior end of the mylohyoid line and represents the region of
interdigitation of muscle fibers ofthe superior pharyngeal constric-
tor and buccinator
PHARYNGEAL CONSTRICTORS

SUPERIOR PHARYNGEAL CONSTRICTOR

INSERTION
b Insertion: pharyngeal tubercle and the pharyngeal raphe in the pos-
' terior midline; inferiorly, it is overlapped by the middle pharyngeal
constrictor