Term: ovary ovarian follicle stage I
Name: ovary
Synonyms: ovaries
Definition: Female reproductive organ. The ovary is a bilobed cavitated organ located ventral to the swim bladder.
Ontology: Anatomy Ontology [ZFA:0000403]

Name: ovarian follicle stage I
Synonyms: ovarian follicle stage 1, previtellogenic ovarian follicle
Definition: Stage I follicles (less than 140 microns) contain a stage 1 oocyte and are in the primary growth stage.
Ontology: Anatomy Ontology [ZFA:0001263]