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प्रश्न
Write a short note on fallopian tube.
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उत्तर
Fallopian tubes:
These are a pair of muscular ducts lying horizontally over the peritoneal cavity. The proximal part of the tube lies close to the ovary and distally it opens into the uterus. Each tube is 10 to 12 cm in length. It is internally lined by ciliated epithelium.
It can be divided into three regions:
- Infundibulum:
The proximal funnel-like part with an opening called ostium surrounded by many finger-like processes called fimbriae (of these at least one is long and connected to the ovary). The cilia and the movement of fimbriae help in transporting the ovulated egg to the ostium. - Ampulla:
It is the middle, long and straight part of the oviduct. Fertilization of the ovum takes place in this region. - Isthmus/Cornua:
The distal narrow part of the duct opening into the uterus. - Functions:
- Fallopian tubes carry the released egg from the ovary to the uterus.
- Ampulla provides the site for fertilization of the ovum.
APPEARS IN
संबंधित प्रश्न
Define the term Gamete.
The middle piece of sperm provides:
Differentiate between:
Semen and sperm
Given below is a portion of the diagram to show the diagrammatic highly magnified view of a single human sperm. Complete the diagram to show its normal structure.
The figure given alongside represents the female reproductive system of a mammal.
Name the parts labelled A - D
State whether the following statement is true or false:
Fertilization occurs in the vagina.
Choose the correct answer:
Virgin birth is called ______________
Name the following:
Organ where fertilization occurs.
Give Reasons
A large number of sperms are required for fertilizing one egg.
Draw a labeled diagram of sperm.
Give Technical Term:
In how many weeks fetus development is completed?
Complete the following sentences with appropriate word:
___________ hormones are secreted by the interstitial cells.
Define.
Fertilization
Sperms undergo the following changes in the epididymis EXCEPT ______
What is sex chromosomes?
Match the items in column I with those in column II and write down the matching pairs (some may not match).
| Column I | Column II | ||
| (a) | Acrosome | (i) | An embryo which looks like human baby. |
| (b) | Gestation | (ii) | Luteinizing hormone |
| (c) | Menopause | (iii) | Ovum producing cells. |
| (d) | Foetus | (iv) | Semen |
| (e) | Oogenesis | (v) | Spermatozoa |
| (f) | Ovulation | (vi) | Complete stoppage of menstrual cycle. |
| (vii) | Time taken by a fertilised egg till the delivery of baby. |
Choose the odd one out from the group of terms given below and write the category for the remaining terms:
Which substance is located on the surface layer of the egg and acts to attract compatible sperm?
What is the result of sperm entry into the secondary oocyte?
