Ovarian and Uterine Cycles

To the tune of "Heart of Glass" by Blondie
During the follicular phase
Follicle cells proliferate
Develop into granulosa cells
An outer layer of theca cells as well
They develop to maturity
Can be more than one in other species
A fluid-filled antrum surrounds the oocyte
Partially developed follicles die
Mature oocytes are released and enter the uterine tube
There is formation of the corpus luteum
From the ruptured follicle
This marks the start of the luteal phase
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These ovarian changes
Occur at the same time as uterine phases
Tissue and blood are shed
During the menstrual process
The uterus, in the proliferative phase, will start to renew
Through regrowth of endometrial tissue
Proliferation of blood vessels
And thickening of the myometrium
Ooh, oh, ooh, oh
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During the secretory phase
Conditions favour implantation
Endometrial glands secrete glycogen
More blood vessel proliferation
Ooh, oh, ooh, oh
Ooh, oh, ooh, oh
Ooh, oh, ooh, oh
Ooh, oh, ooh, oh