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प्रश्न
What differences are there in number, structure, and activity of the male and female gametes in a man?
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उत्तर
| Male Gametes | Female Gametes |
| Number: Very large. | Normally one at a time. |
| Structure: A sperm is about 50-55 microns long with head, acrosome neck, and lashing tail. | It is spherical and non-motile. |
| Activity: With the help of a lashing tail, it moves actively towards the oviducts. | Passively carried from ovary to oviduct. |
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संबंधित प्रश्न
Given alongside is a diagram of male reproductive system in humans. Label the parts indicated by numbers 1 to 5, and state their functions.
Draw a label diagram.
Draw a labeled diagram to show the interrelationship of four accessory ducts in a human male reproductive system.
Name the Following
The hormone that stimulates the development of secondary sexual characters in males.
Write the functional activity of the following structure:
Testis
Urinogenital duct is the ____________.
All are accessory ducts in males, EXCEPT
In humans, male germs cells differentiate into ______ at the end of first meiotic division.
The vas deferens receives duct from the seminal vesicle and opens into urethra as ______.
Give reason: Testes are located outside the body cavity in scrotal sacs.
Write important function of the following:
Testis
