2.4 POJA-L1100
Title: Scheme of palatine and pharyngeal tonsils (‘lymphoepithelial tissues’) (human)
Description: The palatine tonsils are covered by the multilayered nonkeratinizing squamous epithelium of the oral cavity (A-1). In contrast to the palatine and lingual tonsils, the epipharyngeal tonsil has a multilayered ciliated epithelium (“respiratory-like epithelium”, B-9).
The Waldeyer’s tonsillar ring is a ring of lymphoid tissue located around the nasopharynx and oropharynx. It comprises the (naso)pharyngeal tonsils or adenoids, the tubal tonsils, the palatine tonsils and the lingual tonsils.
(A): Palatine tonsil. (B): Pharyngeal tonsil
Keywords/Mesh: lymphatic tissue, palatine tonsil, pharyngeal tonsil, lymphoepithelial tissue, reticular tissue, histology, POJA collection
Title: Scheme of palatine and pharyngeal tonsils (‘lymphoepithelial tissues’) (human)
Description: The palatine tonsils are covered by the multilayered nonkeratinizing squamous epithelium of the oral cavity (A-1). In contrast to the palatine and lingual tonsils, the epipharyngeal tonsil has a multilayered ciliated epithelium (“respiratory-like epithelium”, B-9).
The Waldeyer’s tonsillar ring is a ring of lymphoid tissue located around the nasopharynx and oropharynx. It comprises the (naso)pharyngeal tonsils or adenoids, the tubal tonsils, the palatine tonsils and the lingual tonsils.
(A): Palatine tonsil. (B): Pharyngeal tonsil
- non-keratinized stratified squamous epithelium
- deep, branched invaginations of epithelial lining (so-called crypt)
- lymphatic nodule
- area of lymphocytic diapedesis
- thick connective tissue capsule
- connective tissue septa derived from the capsule
- palatoglossal muscle
- palatopharyngeal muscle
- pseudostratified ciliated epithelium
- furrows
- lymphatic tissue
- connective tissue fold
- constrictor pharyngis superior muscle
- seromucous glands (pars nasalis pharyngis)
Keywords/Mesh: lymphatic tissue, palatine tonsil, pharyngeal tonsil, lymphoepithelial tissue, reticular tissue, histology, POJA collection