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प्रश्न
The below diagram represents the vertical view of the human female reproductive system.
(i) Label the parts indicated by the guidelines 1 to 8.
(ii) How does the uterus prepare for the reception of a zygote?
(iii) What happens to the uterus if fertilization takes place?
(iv) What happens to the uterus if fertilization has failed to take place?
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उत्तर
(i)
1. Oviduct
2. Funnel of oviduct
3. Ureter
4. Vagina
5. Ovary
6. Uterus
7. Bladder
8. Urethra
(ii) The endometrium lining and glands of the uterine wall grow to prepare the uterus for the reception of a zygote.
(iii) If fertilization takes place, the embryo is implanted in the uterus. The uterus wall develops a placenta which attaches the embryo to the uterus and the uterine wall expands to accommodate the growing embryo.
(iv) If fertilization fails to take place, menstruation takes place during which endometrium of the uterus is cast off. The capillaries and cells of this layer rupture and disappear.
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संबंधित प्रश्न
Describe the development of a fertilized ovum upto implantation.
Differentiate between the following pair:
Uterus and vegina
Draw a sectional view of the human ovary. Label the following parts :
(ii) Secondary oocyte
(iii) Graafian follicle
(iv) Corpus luteum
Write the functional activity of the following structure:
Graafian follicle
The follicular fluid present in the antrum is secreted by ______
The opening of the vagina is often covered partially by a membrane called ______.
The fertilization of the human egg by the sperm takes place in ______
Anterior lobe of pituitary secretes:
Sketch and label - Graafian follicle.
The diagram given below shows a section of the human ovary.
- Name the process for the release of the part labelled 1.
- Write the name of the structure marked 2.
