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From Embryology

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Section through one of the crypts of the tonsil

(Stöhr.) Magnified. e. Stratified epithelium of general surface, continued into crypt. f, f.

Nodules of lymphoid tissue—opposite each nodule numbers of lymph cells are passing into or through the epithelium. s, s. Cells which have thus escaped to mix with the saliva as salivary corpuscles.

Structure

The follicles of the tonsil are lined by a continuation of the mucous membrane of the pharynx, covered with stratified squamous epithelium; around each follicle is a layer of closed capsules consisting of lymphoid tissue imbedded in the submucous tissue. Lymph corpuscles are found in large numbers invading the stratified epithelium. It is probable that they pass into the mouth and form the so-called salivary corpusles. Surrounding each follicle is a close plexus of lymphatics, from which the lymphatic vessels pass to the deep cervical glands in the neighborhood of the greater cornu of the hyoid bone, behind and below the angle of the mandible.



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Reference

Gray H. Anatomy of the human body. (1918) Philadelphia: Lea & Febiger.


Cite this page: Hill, M.A. (2024, June 17) Embryology Gray1027.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Gray1027.jpg

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