egg follicle growth within the ovary

determination reproductive menstruation development gynecology anatomical embryology beginnings ovulation pregnancy fertility menstrual education structure fallopian undefined follicle pregnant medicine estrogen ovarian medical biology science hormone health embryo female period system uterus luteum oocyte mature liquid growth cancer ovary cycle woman organ chart blood sperm cyst cell ovum life care body egg screenshot lighting painting darkness produce yellow flower green light glass petal plant leaf hand art eye