Yes, polar bodies have chromosomes but contain very little cytoplasm and do not have the ability to be fertilised. The first polar body is formed... View Article
Fifty primary oocytes give rise to 50 eggs. A primary oocyte undergoes meiosis I to produce a secondary oocyte and a polar body. The secondary... View Article
Oogenesis starts during the embryonic stage itself. There are around two million primary oocytes present in the ovaries at the time of birth in... View Article
Luteinizing hormone secreted by the pituitary gland stimulates the rupture of the follicle for ovulation. There is an LH surge just before... View Article
Progesterone level increases after ovulation and the level reaches the peak after 5-9 days of ovulation, i.e. around the 20-21st day of the... View Article
Capacitation is the process by which sperms gain the ability to penetrate the ovum or fertilise the ovum. Capacitation occurs in the female... View Article
Sperms gain motility in the epididymis. Sperms formed in the seminiferous tubules are nonmotile and are released from seminiferous tubules by the... View Article
Leydig cells are present in the interstitial spaces in the testicular lobules. They secrete androgens, primarily testosterone. Androgens... View Article
Testes and ovaries produce haploid gametes from primordial germ cells. Testes produce sperms, whereas ovaries produce eggs. Also Check: Why Is A... View Article
During ovulation, the Graafian follicle ruptures and releases the ovum. After ovulation, the Graafian follicle gets converted into corpus luteum,... View Article
Graafian follicle is the fully mature ovarian follicle, which ruptures at the time of ovulation to release an ovum. The ruptured Graafian... View Article
Remnants of a ruptured Graafian follicle transform into corpus luteum. It secretes progesterone, which is required for the maintenance of the... View Article
Yes, progesterone is secreted by the corpus luteum. It is required for the maintenance of the endometrium during implantation. Also Check:... View Article
Sertoli cells are also called nurse cells as they nourish male germ cells in the seminiferous tubules. They secrete various proteins and hormones... View Article
Sertoli cells are present inside seminiferous tubules and provide nutrients to male germ cells. Leydig cells are interstitial cells present... View Article
Leydig cells are also called interstitial cells. They are present in the interstitial spaces present outside seminiferous tubules. Leydig cells... View Article
LH secreted by the anterior pituitary stimulates the synthesis of testosterone from Leydig cells. GnRH secreted by the hypothalamus stimulates... View Article
Sertoli cells are present in the seminiferous tubules along with male germ cells. They provide nourishment to male germ cells. They also act as... View Article