Q.What are corpus luteum and corpus albicans ?

The female reproductive system is built around the paired ovaries — elliptical structures with an outer germinal epithelium, a tunica albuginea, and a stroma split into a follicle-bearing outer cortex and a vascular inner medulla — held in place by the mesovarium ligament. A pair of fallopian tubes (oviducts) run from each ovary to the uterus, starting with a fringed, funnel-shaped infundibulum that sweeps up the ovum after ovulation, widening into the ampulla, and narrowing into the isthmus before joining the uterus. The uterus is a thick-walled, muscular, pear-shaped organ with three tissue layers — the outer perimetrium, the contractile myometrium, and the inner, cyclically-changing endometrium — narrowing below into the cervix, which opens into the vagina; together the cervical canal and vagina form the birth canal. External to the vagina lies the vulva: the labia majora and minora, the clitoris, and the hymen (a thin membrane that can be torn by intercourse or unrelated activity, so it is not a …