The hormone that prepares and maintains the uterus during secretory phase is secreted by:
Correct answer: B. Corpus luteum
- A. Corpora cardiaca
- B. Corpus luteum
- C. Corpora albicans
- D. Graafian follicle
Explanation
During the secretory phase of the menstrual cycle, the ruptured follicle in the ovary transforms into a structure called the corpus luteum. The corpus luteum is a temporary endocrine structure that secretes the hormone progesterone. Progesterone helps prepare and maintain the uterine lining (endometrium) for potential embryo implantation and pregnancy.
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Human reproduction covers the male and female reproductive organs, gamete formation, fertilization, implantation and hormonal regulation. The menstrual cycle includes ovarian and uterine changes controlled by pituitary and ovarian hormones, while sexually transmitted diseases are studied through their causes, transmission, symptoms, prevention and effects on fertility.
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