(a) Draw a diagrammatic sectional view of the female reproductive system of human and label the parts:

(i) where the secondary oocytes develop

(ii) which helps in collection of ovum after ovulation

(iii) where fertilization occurs

(iv) where implantation of embryo occurs.
(b) Explain the role of pituitary and the ovarian hormones in menstrual cycle in human females.

Solution

(a) View of the female reproductive system of human

(b) Changes happening in ovary and uterus during menstrual cycle are caused by change in the levels of pituitary and ovarian hormones.

After menstrual phase gonadotropin i.e., Luteinising hormone (LH) and follicular stimulating hormone (FSH) are released from pituitary. Their level gradually increases during follicular phase and it stimulates development of follicles and secretion of estrogen by growing follicles.

Both LH and FSH attain peak on 13th & 14th day.

Rapid secretion LH causes ovulation on day 14.

During luteal phases Graafian follicle changes to corpus luteum which secretes Progesterone Progesterone maintains endometrium which is necessary for implantation.

Some More Questions From Human Reproduction Chapter

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Human Reproduction

Some More Questions From Human Reproduction Chapter

Ovulation takes place :

Which of the following shows hermaphroditism and self fertilization ?

The chromosone in primary spermatocyte are :

The male reproductive system is located in the body, in the :

Sertoli cells provide :

The middle piece of human sperm contains :

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 :

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