Crypts are anatomical structures that are narrow but deep
invagination
Invagination is the process of a surface folding in on itself to form a cavity, pouch or tube. In developmental biology, invagination of Epithelium, epithelial sheets occurs in many contexts during Animal embryonic development, embryonic developme ...
s into a larger structure.
One common type of anatomical crypt is the
Crypts of Lieberkühn.
However, it is not the only type: some types of
tonsils also have crypts. Because these crypts allow external access to the deep portions of the tonsils, these tonsils are more vulnerable to infection.
References
External links
* - "Lymphoid Tissues and Organs: tonsil"
Histology of crypt of tonsil at siumed.edu
Anatomy
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