(a) Draw a labelled diagram of the human female reproductive system.

(b) Enumerate the events in the ovary of a human female during:

(i) Follicular phase

(ii) Luteal phase of menstrual cycle

Solution

(a)
(b)

(i) Follicular phase: Follicular phase is also called the proliferative phase. During this phase the FSH released by the pituitary stimulates the growth of the primary ovarian follicle and also causes maturation of the primary oocyte in this follicle. The follicular cells of the Graafian follicle secrete oestrogen. Due to an increase level of estrogen the uterine endometrium becomes thick, more vascular and more glandular. This phase lasts for about 10 to 14 days, or until ovulation occurs. The luteinizing hormone (LH) released by the pituitary induces the mature Graafian follicle to burst and release the egg or ovum into the fallopian tube. This is called ovulation.

(ii) Luteal phase: The luteal phase is also called secretory phase or the post -ovulatory phase. It follows the ovulation. During this phase the corpus luteum continues to release the hormone, progesterone. It lasts for about 12 - 14 days and extends from the 16th - 28th day of the menstrual cycle.

Some More Questions From Human Reproduction Chapter

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Human Reproduction

(a) Draw a labelled diagram of the human female reproductive system.

(b) Enumerate the events in the ovary of a human female during:

(i) Follicular phase

(ii) Luteal phase of menstrual cycle

Some More Questions From Human Reproduction Chapter

The process of differentiation of spermatid into a spermatozoa is known as :

Primary spermatocyte produces 4 spermatozoa, but primary oocyte produces :

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 :

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For Daily Free Study Material Join wiredfaculty

Human Reproduction

(a) Draw a labelled diagram of the human female reproductive system. (b) Enumerate the events in the ovary of a human female during: (i) Follicular phase (ii) Luteal phase of menstrual cycle

Some More Questions From Human Reproduction Chapter

The process of differentiation of spermatid into a spermatozoa is known as :

Primary spermatocyte produces 4 spermatozoa, but primary oocyte produces :

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 :

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

(a) Draw a labelled diagram of the human female reproductive system.

(b) Enumerate the events in the ovary of a human female during:

(i) Follicular phase

(ii) Luteal phase of menstrual cycle