define copulation , ovulation, menstruation. dont shy
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ovulaion = the arrival of the ready egg (ovum) from the ovary. the egg is discharge when the cavity encompassing it tears open in light of a harmol changes . ovulation happens around 14 or 15 days from the primary day of the women last mestrual cycle.
menstruation = the visible manifestation of cyclic physiologic uterine bleeding due to shedding of the endometrium
due to invisible interplay of homones through hypo-thalamo-pituitary-ovarian axis
for menstruation to occur axis should be active ,endometrium should be receptive and outflow tract should be patent .
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