Pharynx Flashcards
adenoids
enlarged pharngeal tonsils
pharynx becomes continous with esophagus at what vertebral level?
c6
tonsillar bed is formed by?
superior pharngeal constrictor
pharngobasillar fascia
pharngeal isthmus
opening between soft palate and posterior pharyngeal wall
nasopharynx has:
pharyngeal tonsils pharyngeal isthmus tubal elevation pharyngeal recess saloingopharyngeal fold
vallecula
depressions on either side of the median glossoepiglottic fold
oropharyngeal isthmus
- interval between paired plattoglossal arches
- marks the boundary between mouth and pharynx
palatine tonsils
present in the recess b/w plattoglossal and plattopharyngeal arches
piriform fossa
- present on either side of the laryngeal inlet
- sharp ingested bodies most commonly lodge here
medial boundary of piriform fossa
aryepiglottic fold
lateral boundary of piriform fossa
thyroid cartilage
sensory nerve supply of the mucous of nasopharynx
maxillary nerve
sensory nerve supply of the mucous of oropharynx
glossopharyngeal nerve
sensory nerve supply of the mucous of laryngopharynx
vagus nerve
blood supply of pharynx
maxillary artery
lingual artery
ascending pharyngeal artery
tonsillar branches of facial artery
pharyngeal raphe
- posterior midline fibrous band onto which three constrictor muscles insert
- extends from pharyngeal tubercle of the occipital bone to the esophagus
cricopharyngeus muscle
lower part of inferior constrictor muscle arises from cricoid cartilage and acts as a sphincter
killian dehescence
area on the posterior pharyngeal wall b/w the upper propulsive and lower sphincteric part of the inferior constrictor muscle
muscles involved in shutting off nasopharynx during swallowing
palatopharyngeus
superior constrictor
muscles involved in larynx elevation
stylopharyngeus
salpingopharyngeus
palatopharyngeus
thyrohyoid
muscles involved in making the laryngeal inlet smaller
oblique arytenoid
thyroarytenoid
aryepiglottic fold
stylopharyngeus is supplied by which nerve?
glossopharyngeal nerve
lymph from pharynx drains into:
pretracheal or retropharyngeal and then into deep cervical lymph nodes
palatine and lingual tonsils are present in:
oropharynx
Waldeyer’s ring of lymphoid tissue
-surrounds opening into the digestive & respiratory pathway
lateral part of waldeyers ring is formed by
palatine and tubal tonsils
upper part of waldeyers ring is formed by
pharyngeal tonsils
lower part of waldeyers ring is formed by
lingual tonsils
pus from cervical tuberculous osteomyelitis points to:
sternocleidomastoid muscle
pus from retropharyngeal lymph nodes points to:
posterior pharyngeal wall
source of post operative bleeding after tonsillectomy
external palatine vein
Peritonsiller Abcess (Quinsy)
spread of infection from the palatine tonsils to the loose connective tissue