University:
Camosun College
Course:
BIOL 252 | Pathophysiology for Nursing 1
Academic year:

2024
Views:

274

Pages:

3
Author:

Aysha A.

Palatine Tonsil The palatine tonsil occupies the tonsillar sinus o fossa between the palatoglossal and palatopharyny arches -It is almond-shaped - Jwo surfaces medial and lateral Iwo border, entice and pasteriastky - Jwo poles, upper and lower sosi - The medial surface is covered by stratified squamas epithelium continuously. cuith that of the mouth - This surface has 12 to 15 crypth - Largest kmean intratonsillar cleft win - The lateral surface is covered by a sheet of fascia which forms the hemicapsule of the tonsil. The capsule is an extension of pharyngolasilar fascia. It is loosely attached to the muscular wall of the pharynx, formed here by the wall superice constrictor and by the styloglossue, but anteroinferior the capsule is firmly aber adherent to preside ( suspensory ligament of of the langur, tonsill just of the visitation powell such ind front of fo of palatoglossus and palate pharyngeal muscle, The palatine nem external palatine or the peritonsillar wein descends from the palate in the loose arela acelor tissue Surfare of the cheer pisk cing the vein. of the may capsule, and the wall he tonsil of on the lateral Orosses the finish the pharos injured during tonsillectomy remove The bed of the tonsil is formed from within outwards by: The pharynx basilar fascia a) b) The surprise stricken and palat pharyngeal us c) The buccopharyngeal fascia. a) In the lower part the styloglossus, e) The glossopharyngeal nerve, - still more laterally there are the facial artery cuith to tonsillar and ascending palatine branches. The internal carotid artery is 2.5cm pastexdateral to the tonsil. The anterior border is related to the palate glassal arch with muscle. The pastiera border is related to the palato pharyngeal auch with its meusde The upper pole is related to the soft palate, and the lower pole to the tongue The plica triangularis is a triangular vestigial fold of muscles merelicane coverage - - the antero inferice part of the tonsil - The plica semilunaris is similar semilunar fold that may cross the upper part of the tonsillar sinus. - The inbeatonsillar cleft is the largest crypt of the tonsul. - It is present in its upper part. The mouth of cleft is semilunar in shape and parallel to dorsum of tangis - It represents the in tern al second pharyngeal pouch opening of the Arterial supply of Jonsil 1) Main source: Jonsillar branch of the facial artery 2) Additional sairassin a) De Ascending palatine branch of facial artery b) Dorsal lingual branches of the lingual artery c) Ascending pharyngeal branch of the cacternet carotid artery d) The greater palatine branch of the maxillary artery. Venous Drainage One o more veins leane the lover deep surface of the tonvil pierce the part of the superior constrictor and join the palatine pharyngeal facial needs ist wing T Lymphatic Drainage att ol alag Lymphatics pass to sugun Jolog jugulodigastric nock- lolgitar Netme supply - Glossopharyngeal and lesser palatini nervos. wail collins least ext Clinical anatomy, size - Jensillectomy is de os trying in the Jonsillitis - xeferred pars to Enlarged & infected manila of lon requiet toran taille Temyin ast