invagination
Inward folding process
Invagination is the folding of one part of a structure back into itself, like a finger of a glove pushed inward.
The term appears primarily in biology and medicine, describing how tissues fold during embryonic development or how cells engulf material by creating inward pockets.
The verb is invaginate: The cell membrane invaginates to form a vesicle.
Process of folding inward
- plicationAct of creating folds
- enfoldingSurrounding on all sides
- indentationInward cut or setback
- depressionProlonged low state
concavity · tucking · pocketing · pouch · dimpling · recess · cavity · protrusion
Embryo forms primary layers
- gastrulaCup-shaped early embryo
- ectodermEmbryo's outer cell layer
- endodermInnermost embryonic tissue layer
- mesodermEmbryonic tissue forming muscles
neural tube · morphogenesis · blastocyst · organogenesis · differentiation · induction · cleavage · sea urchin
Cell engulfs external material
- phagocytosisCellular ingestion of particles
- vesicleSmall fluid-filled sac
- cell membraneOuter layer of cytoplasm
- plasma membraneLipid bilayer enclosing cytoplasm
Internal digestive organ
- intestineDigestive tract organ
- herniationOrgan protruding abnormally
- prolapseOrgan slipping from place
- mucosaMoist organ lining
lumen · telescoping · obstruction · inguinal · gastric · cecum · duodenum · ileum
infolding
Process of folding inward
- plicationAct of creating folds
- enfoldingSurrounding on all sides
- indentationInward cut or setback
depression · concavity · tucking · pocketing · pouch · dimpling · recess · cavity · protrusion · infold
gastrulation
Embryo forms primary layers
- gastrulaCup-shaped early embryo
- ectodermEmbryo's outer cell layer
- endodermInnermost embryonic tissue layer
mesoderm · neural tube · morphogenesis · blastocyst · organogenesis · differentiation · induction · cleavage · sea urchin · fate mapping
endocytosis
Cell engulfs external material
- phagocytosisCellular ingestion of particles
- vesicleSmall fluid-filled sac
- cell membraneOuter layer of cytoplasm
plasma membrane · receptor-mediated · vacuole · engulfment · internalization
bowel
Internal digestive organ
- intestineDigestive tract organ
- herniationOrgan protruding abnormally
- prolapseOrgan slipping from place
mucosa · lumen · telescoping · obstruction · inguinal · gastric · cecum · duodenum · ileum · colonoscopy
invaginationeversion
Turning inside out
protrusion · outpouching · extrusion · herniation · prolapse
invaginationprotuberance
Projection from a surface
bulge · projection · convexity · outgrowth · bump