Question

Explain the events that occur in a graafian follicle at the time of ovulation and thereafter

Answer 1

During the mid cycle Leutinizing hormone secretes to its maximum level which induces rupture of Graafian follicle and thereby the release of ovum (ovulation). The ovulation is followed by the luteal phase during which the remaining parts of the Graafian follicle transform as the corpus luteum which secretes large amounts of progesterone which is essential for maintenance of the endometrium. Such an endometrium is necessary for implantation of the fertilised ovum and other events of pregnancy.

Answer 2

Function of Graafian follicle

Explanation:

• Graafian follicle (ovarian follicle) The fluid filled cavity that encompasses and secures the developing egg cell (oocyte) in the ovary of a warm blooded animals
• The oocyte is encompassed by granulosa cells, which emit liquid into the cavity of the follicle. After the arrival of the ovum the follicle forms into a corpus luteum  
• The Graafian follicle ruptures and discharges the ovum comprising of the optional oocyte, zona pellucida, and coronal radiata into the infundibular projections of the fallopian tube