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Read the graph given above and correlate...

Read the graph given above and correlate the uterine events that take place according to the hormonal levels on
(i) 6 - 15 days
(ii) 16 - 25 days
(iii) 26 - 28 days (if the ovum is not fertilised )
(b) Specify the sources of the hormones mentioned in the graph.

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(i)Regeneration of endometrium and ovulation
(ii) Uterus gets highly vascularised, spongy and is ready for embryo implantation
(iii) If ovum is not fertilised the endometrium disintegrates leading to menstruation
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TRUEMAN BIOLOGY-REPRODUCTION-SECTION -C
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