invagination
/in,vædʤi'neiʃn/
Học thuậtThân thiện
Definition
- Noun:
- The process of folding inward or turning inside out to form a pocket or cavity: In biology and medicine, "invagination" refers to the infolding of a layer of cells or tissue to create a pouch or depression in a surface.
- The state or condition of being folded inward or sheathed: It can also describe the resulting structure or the condition itself.
Examples of Usage
- Noun:
- The early stage of gut formation involves the invagination of the embryonic cell layer.
- The doctor diagnosed the condition as an intestinal invagination, which required immediate attention.
Advanced Usage
- In developmental biology: "Invagination" is a fundamental morphogenetic process where a sheet of cells folds inward to form structures like the archenteron during gastrulation.
- Gastrulation in many animals is characterized by the invagination of the blastula.
- In medicine: Specifically refers to intussusception, a condition where a part of the intestine folds into an adjacent section.
- Abdominal pain in infants can be a symptom of invagination.
Variants and Related Words
- Invaginate (verb): To fold or sheathe inward; to become invaginated.
- During embryogenesis, certain cells will invaginate to form the neural tube.
- Invaginated (adjective): Describing something that has undergone invagination.
- The invaginated membrane forms a distinct pocket.
Synonyms
- Infolding: The act of folding inward.
- Intussusception: (Specifically in medical context) The inward folding of one part of the intestine into another.
- Ingrowth: Growth inward (can be related in some biological contexts).
Antonyms
- Evagination: The process of turning inside out or protruding outward to form a pouch.
Noun
- the folding in of an outer layer so as to form a pocket in the surface
- the invagination of the blastula
- the condition of being folded inward or sheathed