Human Anatomy Part 1 - K. A. Dyubenko, A. K. Kolomiyytsev, Yu. B. Chaykovsky 2002

Special Section
Splanchnology, splanchnologia [the study of viscera] — Development of the digestive and respiratory systems
Development of the tonsils

The palatine Tonsils begin to develop at the end of the third month of gestation. Lymphocytes migrate into the Connective Tissue bounding the second pharyngeal pouches, resulting in The formation of lymphoid tissue. As this tissue expands, it is invaded by solid epithelial cords that subsequently transform into crypts. During the final three months of embryonic development, lymphatic nodules appear within the tonsillar tissue. The overall growth of the tonsils causes the surrounding Fibrous connective tissue to condense, forming a distinct capsule.

The pharyngeal and lingual tonsils develop in a similar manner, except that they contain fewer lymphatic nodules and feature shallower crypts.



Last update: 08/08/2026

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