Stevens Tonsils

The ring in the oropharynx, comprising the three tonsils.

Palantine tonsils.

Seromucuous salivary glands lie beneath the capsule but do not extend into the crypts (note: crypts do not extend all of the way to the base of the tonsil). Lack of flushing out of the crypt may account of the tendency of these tonsils to become inflammed (germinal centers are activated --> become inflammed and swollen :()

• - It surrounds the eustacian tubes
• - It has diffuse lymph tissue rather than nodules
• - It has NO CRYPTS

Palantine & phayngeal

False. The pharyngeal tonsils do NOT have crypts, but the tissue is thrown into FOLDS; underlying seromucous salivary glands drain/wash surface of the tonsil.

Mucous salivary glands

• Oral epithelium: stratified squamous epithelium
• Resp epithelium: pseudostratified columnar w cilia

• Palantine - oral epi
• Pharyngeal - resp epi
• Lingual - oral epi

Salivary glands empty into multiple, non-branching crypts. (slide 39)

• Pharyngeal: (aka: adenoid) a single tonsil, located at midline in posterior wall of superior portion of nasopharynx.
• Palatine: adjacent to posterior molars
• Sublingual: below base of the tongue (slide 29). She also calls these "Lingual tonsils" and identifies them as located in posterior 1/3 of tongue (slide 39)

True. (slide 33)

True. (slide 29)