Term Name:	cleavage furrow ingression
Synonyms:	cleavage furrow contraction
Definition:	Advancement of the cleavage furrow from the outside of the cell inward towards the center of the cell. The cleavage furrow acts as a 'purse string' which draws tight to separate daughter cells during cytokinesis and partition the cytoplasm between the two daughter cells. The furrow ingresses until a cytoplasmic bridge is formed.
Ontology:	GO: Biological Process [GO:0036090]    QuickGO    AmiGO