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प्रश्न
Mention the importance of the position of the testes in humans.
उत्तर
The testes are positioned in such a way hanging out from the body in scrotal sac that provides optimal temperature 2°C to 3°C lower than internal body temperature for effective sperm production.
संबंधित प्रश्न
Find the odd one out and write it: vagina, uterus, vas deferens, ovary
List two functions ovary of human female reproductive system.
What are sexually transmitted diseases?
Name the respective part of human female reproductive system:-
(i) that produces eggs,
(ii) where fusion of eggs and sperm takes place, and
(iii) where zygote gets implanted.
Name the cells that secrete Testosterone
State the exact location of the Proximal convoluted tubule.
What are the male sex cells in humans called?
What is the scientific name of birth canal?
Which structure in human female is equivalent to the testes in the male?and in what respect the structures are equivalent?
How long does a human baby take to develop before birth?
What changes are seen in boys at the time of puberty?
Explain why, fertilisation is possible if mating takes place during the middle of menstrual cycle.
The ratio of the number of chromosomes in a human zygote and a human sperm is ______
The normal body cell of an organism contains 28 pairs of chromosomes. The number of chromosomes present in its germ cell will be
(a) 28
(b) 14
(c) 56
(d) 42
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?
Give appropriate term of the following:
The onset of reproductive phase in a young female.
Define the following:
Clone
If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will NOT be transported form ______
Given below is a group of terms. In the group, one pair indicates the relationship between the two terms. Rewrite and complete the second pair on a similar basis.
Female gonad : Ovaries :: Male gonad : ______.
