Invagination
Invagination is a process in biology and medicine where a structure folds inwards into itself, creating a pocket or pouch. This process is seen in various biological and medical contexts, such as during the development of an embryo, in certain disease processes, and in some surgical procedures.
Biology[edit | edit source]
In biology, invagination is a fundamental process during the development of an embryo. It is the initial step in the formation of the gastrointestinal tract. During this process, the cells of the blastula stage of the embryo fold inwards, forming a pouch that will eventually become the gut. This process is also involved in the formation of other structures, such as the neural tube.
Medicine[edit | edit source]
In medicine, invagination can refer to a number of different processes or conditions. For example, in gastroenterology, an intussusception is a type of invagination where a part of the intestine folds into another section of intestine. This can cause a blockage and is a medical emergency.
In surgery, invagination can refer to a technique used in certain procedures. For example, in a gastrectomy, the surgeon may invaginate the stomach to create a new, smaller pouch.
Pathology[edit | edit source]
Invagination can also occur in a pathological context. For example, in polyps, the tissue can invaginate into the underlying layer, creating a potential space for the growth of tumors.
See also[edit | edit source]
References[edit | edit source]
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Contributors: Prab R. Tumpati, MD