R. NDERITU
,OVARIAN CYCLE
200,000 primordial follicles at birth in cortex of the
ovary.
Some of these become cystic Graafian follicle.
Graafian follicle from puberty enlarges and one
matures every month to give out an ovum.
, GRAAFIAN FOLLICLE
Ovum is situated at one end of Graafian follicle, encircled by
narrow perivitelline space. Surrounding this are clump of
cells discus proligerus.its cells radiate outward to form
corona radiata.innermost cells of corona are very clear and
are called zona pellucida.
The Graafian follicle is lined with granulose cells and contains
follicular fluid.
Outer coat of follicle is external limiting membrane around
it is compressed ovarian stroma theca.
Draw a diagram showing a mature graafian follicle.