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 is a mechanism that takes place during gastrulation. This mechanism or cell movement happens mostly in the vegetal ...
s into a larger structure.
One common type of anatomical crypt is the
Crypts of Lieberkühn
In histology, an intestinal gland (also crypt of Lieberkühn and intestinal crypt) is a gland found in between villi in the intestinal epithelium lining of the small intestine and large intestine (or colon). The glands and intestinal villi are co ...
.
However, it is not the only type: some types of
tonsils
The tonsils are a set of lymphoid organs facing into the aerodigestive tract, which is known as Waldeyer's tonsillar ring and consists of the adenoid tonsil, two tubal tonsils, two palatine tonsils, and the lingual tonsils. These organs play a ...
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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