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प्रश्न
The following is the illustration of the sequence of ovarian events (a − i) in a human female
(i) Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.
(ii) Name the ovarian hormone and the pituitary hormone that have caused the above mentioned event.
(iii) Explain the changes that occur in the uterus simultaneously in anticipation.
(iv) Write the difference between ‘c’ and ‘h’.
(v) Draw a labeled sketch of the structure of a human ovum prior to fertilization.
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उत्तर
(i) Figure 'f' illustrates ovulation. It represents the ovulatory stage of oogenesis.
(ii) Progesterone is the ovarian hormone released during ovulation. Follicle stimulating hormone (FSH) and Luteinizing hormone (LH) are the pituitary hormone released during ovulation.
(iii) In anticipation of receiving the fertilised egg, the endometrium of the uterus gets thickened and also the blood supply to the endometrium increases.
(iv) In the figure, (c) stage represents the secondary follicle and the (h) stage represents the degenerating corpus luteum.
|
Secondary follicle |
Corpus luteum |
|
It is Surrounded by layers of granulosa cells |
Layers of granulosa cells absent |
|
Presence of theca layer |
No theca layer is present |
(v) Labeled diagram of the human ovum prior to fertilization.
संबंधित प्रश्न
Women are often blamed for producing female children. Consequently, they are ill-treated and ostracized. How will you address this issue scientifically if you were to conduct an awareness programme to highlight the values involved?
Multiple choice question.
The given figure shows human sperm. Various parts of it are labelled as A, B, C, and D. Which labelled part represents acrosome?
Identify the labels (i-iv) in the given diagram of the ovum.
Calculate the number of sperms and ova produced from 40 primary spermatocytes and 40 primary oocytes.
Identify the correct stages (P - S) in the given diagram of spermatogenesis.
In human beings, the largest cell formed during Oogenesis is ______
There is no cell division involved in ______.
Cavity of graafian follicle is ______.
Mark the odd one.
The region of the root tip whose cells undergo rapid elongation and enlargement and are responsible for the growth of the root in length is called the:
