Term: oocyte stage IV oocyte maturation
Note: This page represents a term created by the combination ("post-composition") of two ontology terms. For more information on the individual terms, click the hyperlinked name.
Name: oocyte stage IV
Synonyms: mature oocytes, oocytes stage IV, postvitellogenic oocyte, Stage 4 oocyte
Definition: Oocyte part of stage IV ovarian follicle. Stage IV oocytes are large and filled with noncrystalline yolky bodies.
Ontology: Anatomy Ontology [ZFA:0001568]
Name: oocyte maturation
Definition: A developmental process, independent of morphogenetic (shape) change, that is required for an oocyte to attain its fully functional state. Oocyte maturation commences after reinitiation of meiosis commonly starting with germinal vesicle breakdown, and continues up to the second meiotic arrest prior to fertilization.
Ontology: GO: Biological Process [GO:0001556]   QuickGO   AmiGO