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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.
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संबंधित प्रश्न
Rewrite the terms in the correct order so as to be in a logical sequence.
coitus, ovum, Sperm, sperm duct, urethra, Vagina.
Give the appropriate term for the following:
Process of fusion of ovum and sperm.
State whether the following statement is true or false:
Gestation in humans is completed in about 380 days.
What happens to uterus if fertilization takes place? And what happens to uterus if fertilization does not take place?
The diagram given below is that of a developing human foetus in the womb. Study the same and answer the question that follow:
Name (any one) hormone produced by the part labelled '2'.
How is the fetus protected?
Give Reasons
Gametes have a haploid (n) number of chromosomes.
Give a labeled structure of ovum.
Explain the Term Vas deferens.
Give Technical Term:
What term is used for the production and maturation of sperms in the testes?
Give Technical Term:
Rupture of the follicle and release of the ovum from the ovary.
Complete the following sentences with appropriate word:
The sperms in a human male are produced in _____.
Complete the following sentences with appropriate word:
Fertilization of the human egg by the sperm normally occurs in the_______
Describe the process of fertilization.
Give scientific reason.
The new individual produced by sexual reproduction always has the recombined genes of both the parents.
Explain the process of fertilization.
Sperms undergo the following changes in the epididymis EXCEPT ______
Which of the following is the first cell of human life?
The eggs of frogs do not have shells for protection, yet they are safe in water, how?
State whether the following statement is True or False. If false, correct the statement:
Human egg has a head, middle piece and tail.
