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Human Reproduction

Question
CBSEENBI12003328
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Hormones for the menstrual cycle are produced by

  • ovaries only

  • uterus only

  • ovaries and uterus

  • ovaries and anterior pituitary

Solution

D.

ovaries and anterior pituitary

Menstrual cycle is regulated by certain hormones, some of which are secreted by the pituitary gland. The pituitary gland is stimulated by releasing factors produced in the hypothalamus. The hormones produced by the pituitary gland influence the ovaries. The hormones secreted by the ovaries affect the walls of the uterus.
It can be explained as: Gonadotropin releasing hormone (GnRH) also called Gonadotropin releasing Factor (GnRF), is secreted by the hypothalamus of the brain, which stimulates the anterior lobe of pituitary to release follicle stimulating hormone (FSH) and luteinising hormone (LH). FSH stimulates the ovarian follicles to produce estrogens during proliferative phase. LH stimulates the corpus luteum of the ovary to secrete progesterone.

Some More Questions From Human Reproduction Chapter

Seminiferous tubules open into vasa efferentia through :

Polar bodies are produced during the process :

In 28 days woman's menstrual cycle, ovulation occurs on :

Scrotum communicates with abdominal cavity through :

How many spermatozoa or sperms are present in human ejaculate ?

Acrosome is a part of:

Humans are :

Menstrual cycle occurs in :

Spermatozoa are produced in the .................. tubules of testes while ova are formed in the .................. of ovaries.

Corpus luteum secretes..................while Leydig cells secrete..................

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