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प्रश्न
A single highly coiled tube where sperms are stored gets concentrated, and mature is known as ______
विकल्प
Epididymis
Vas efferentia
Vas deferens
Seminiferous tubule
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उत्तर
Epididymis
(The epididymis is a single, highly coiled tube about 6 meters long which stores
sperms for some days during which they mature and become motile.)
APPEARS IN
संबंधित प्रश्न
State its functions in case of a pregnant human female.
Write the functions of the following parts in human female reproductive system:-
(i) Ovary
(ii) Oviduct
(iii) Uterus
Explain how the embryo gets nourishment inside the mother’s body.
State the main function of the Sperm duct.
Do all organisms give birth to individuals like humans?
What do the testes in a man produce?
What is the name of the process in which thickened uterus lining alongwith blood vessels is removed from the body of a human female through vaginal bleeding?
The diagram shows female reproductive system. Name the parts labelled A to D.
(a) In which part do the sperms enter?
(b) Which part releases the egg?
(c) In which part does fertilisation take place?
(d) In which part does the foetus develop?
The ratio of the number of chromosomes in a human zygote and a human sperm is ______
When a human female reaches a certain age then vaginal bleeding occurs for a few days after regular time intervals.
(a) What is this process known as (i) in scientific terms, and (ii) in everyday language?
(b) At what approximate age this process starts in human females? When is the human female said to have attained at this stage?
(c) After how much time is this process repeated? For how many days does this process usually last?
(d) What does the onset of this process in human females signify?
(e) At which particular event in the life of a human female does this process stop temporarily but start again?
(f) At which approximate age of human female does this process stop permanently?
When a fertilised egg E formed in the oviduct of a human female divides repeatedly to form an embryo, the embryo gets implanted in the thick and soft lining of the uterus. After this a disc-like special tissue T develops between the uterus wall and embryo through which all the requirements of the developing embryo (and foetus) are met from the mother's body, The embryo is connected to the tissue T through a string like structure S.
(a) What is the other name of fertilised egg cell E?
(b) What is the name of tissue T?
(c) Name the string-like structure S.
(d) Name two substances which pass from mother's blood to embryo through tissue T and, one type of substance which passes from embryo to mother's blood.
(e) What happens to S when the baby is born? Why?
Explain why, a human zygote is more likely to grow into an adult than a frog zygote.
In humans, sperm production occurs in the organ ______.
Name the following:
Male and Female organs on specific individuals.
Rewrite the following terms in a correct and logical sequence:
The luteal phase, follicular phase, menstrual phase, ovulatory phase.
Give Technical Term:
What are the age restrictions for marriages by law for boys and girls in India?
The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for ______.
A zygote is formed by the fusion of a male gamete and a female gamete. The number of chromosomes in the zygote of a human is ______.
