Waldeyer's tonsillar ring, Lecture notes of Medicine

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Waldeyer's tonsillar ring

DR.MASHUK

Waldeyer's tonsillar ring

 (^) Def:

 (^) Waldeyer's tonsillar ring is an anatomical term

describing the lymphoid tissue ring located in the pharynx and to the back of the oral cavity.  (^) The ring consists of (from superior to inferior):

 (^) Pharyngeal tonsil

 (^) Tubal tonsil

 (^) Palatine tonsils

 (^) Lingual tonsils

PALATINE TONSIL

 (^) Surface-

 (^) A)Medial surface-

 (^) It is covered by stratified squamous epithelium.

 (^) It has 12 to 15 crypts

 (^) The largest crypts is called intratonsillar cleft.

PALATINE TONSIL

 (^) B)Lateral surface-

 (^) It is covered by the sheet of fascia which forms

the capsule of the tonsil.  (^) The capsule is an extend upto pharyngobasilar

fascia.  (^) It is attached with the pharynx and tongue by

the superior constrictor, styloglossus, palatoglossus and palatopharyngeus.  (^) The firm attachment keeps the tonsil in place

during swallowing

PALATINE TONSIL

 (^) Borders-

 (^) Anterior borer is related to the palatoglossus

arch with its muscle  (^) The posterior border is related to the

palatopharyngeal arch with its muscle

PALATINE TONSIL

 (^) Poles-

 (^) The upper pole is related with the soft palate

 (^) The lower pole is related with the tongue

PALATINE TONSIL

 (^) Artery supply:

 (^) Mainly it is supplied by tonsillar branch of the

facial artery  (^) Additional sources-

 (^) Ascending palatine branch of facial artery

 (^) Dorsal lingual branches of lingual artery

 (^) Ascending pharyngeal branches of external

carotid artery  (^) The greater palatine branch of maxillary artery

PALATINE TONSIL

 (^) Clinical anatomy:

 (^) Acute tonsilitis

 (^) Chronic tonsilitis

 (^) Tonsilllar abscess

 (^) Ca-tonsil