Histology of Tonsil V.S.Rashmi Priyem ULTRA’S BEST Dental Science College
Histologically , 1. Its Oral S urface is lined by Stratified Squamous Non-keratinized Epithelium, which Dips into Underlying Tissues to F orm Crypts 2. Presence of Lymphatic N odules on the S ides of the C rypts, Many with Prominent: a. Germinal Centres b. Mantle Zones (Corona) 3. Presence of Mucous G lands 4 . Incomplete Connective Tissue Capsule
Function Immune Function at the Entrance of the O ropharynx 1. Form the Protective Mucosal Lining 2. Increase Surface A rea for Contact between the O ropharyngeal Content and the Immune C ells 3. Separate Tonsils from underlying Connective T issue and Wall T hem off in the Event of Infection
Palatine Tonsil
Pharyngeal Tonsil
Lingual Tonsil
Location Either Side of the Oropharynx between P alatopharyngeal and P alatoglossal Arches 1. Pharyngeal Surface of the Tonsil 2. Extend into T onsillar Parenchyma 3. Between the Tonsil and underlying Connective T issue 4. Throughout Tonsillar Parenchyma
Palatoglossal and Palatopharyngeal Arches
Clinical Significance Tonsillitis: Inflammation of the Tonsils as the result of Bacterial or Viral Infection. Red, swollen palatine tonsils with Purulent Exudates (Pus) are easily observed when the patient opens the mouth and the tongue is depressed. Patients present with sore throat, pain, fever, and dysphagia . In severe cases, the infection may extend to involve the pharynx, larynx, and auditory tube.