NEET 2012 Biology question

The secretory phase in the human menstrual cycle is also called

(1)follicular phase and lasts for about 13 days
(2)luteal phase and lasts for about 6 days
(3)follicular phase lasting for about 6 days
(4)luteal phase and lasts for about 13 daysCorrect

Answer: (4)

Solution

After ovulation (about day 14) the ruptured Graafian follicle becomes the corpus luteum, which secretes progesterone. Progesterone makes the endometrium thick, vascular and glandular (secretory) to receive an embryo. This post-ovulatory

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Question ID VK-091038