Pharynx (Chaudhary)

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Author:
catitasilva
ID:
122571
Filename:
Pharynx (Chaudhary)
Updated:
2011-12-10 20:35:00
Tags:
Pharynx
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Description:
Pharynx
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  1. Layers of the pharynx wall
    • mucous
    • fibrous - pharyngobasilar fascia
    • muscular
    • fascial - buccopharyngeal fascia
  2. Parts of the Nasopharynx
    • PT tube - Tubal tonsils
    • Pharyngeal recess - pharyngeal tonsils
    • Salpingopharyngeal fold (muscle)
  3. Parts of the Oropharynx
    • spans: soft palate - apex of epiglottis
    • palatoglossal & palatopharyngeal folds
    • palatine tonsils (on each side of oropharynx, btwn folds)
    • extratonsilar vein (paratonsilar)
  4. Laryngopharynx
    • spans: sup borter of epiglottis - 6th cervical vertebrae
    • posterior to laryngeal inlet (communication w/larynx)
    • piriform recess (on each side of inlet)
  5. Muscles of the pharynx
    • External: 3 circular constrictors
    • Inner: 3 oblique muscles
  6. Muscles of the Pharynx:
    Name the structures that pass between the structures
    Base of Skull
    (1)
    Superior Pharyngeal Constrictor
    (2)
    Middle Pharyngeal Constrictor
    (3)
    Inferior Pharyngeal Constrictor
    (4)
    • 1 - levator, tensor palitini, PT tube
    • 2 - stylohyoid ligament, stylopharyngeus m., CN IX
    • 3 - Internal laryngeal n, superior laryngeal vessels
    • 4 - Recurrent laryngeal n, inferior laryngeal vessels
  7. Nerves of the pharynx
    • Motor:
    • all CN XI thru vagus branches
    • EXCEPT stylopharyngeus CN IX

    • Sensory:
    • nasopharynx - maxillary n.
    • oropharynx - CN IX
    • laryngopharynx - internal laryngeal n. (CN X br.)
  8. Blood supply & lymphatics of pharynx
    • Blood Supply:
    • facial, ascending pharyngeal, maxillary & lingual a. & v.

    • Lymphatics:
    • deep cervical LN
  9. Tonsillitis & Tonsilletomy
    • Most commonly affected: palatine tonsil
    • Bleeding: tonsilar branch of facial a. or paratonsilar v.
    • Nerve injury: CN IX

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