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प्रश्न
Given below is a diagram of the lateral section of the testis of a man. Study the same and answer the questions that follow:
(i) Label the parts numbered 1 to 4 of the diagram.
(ii) State the functions of the parts labeled 1 and 3.
(iii)What is the significance of the testes being located in the scrotal sac outside the abdomen?
(vi)What is the role played by the inguinal canal?
(v) What is semen?
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उत्तर
(i)
1. Seminiferous tubules
2. Testicular lobule
3. Epididymis
4. Vas deferens
(ii)
1. Seminiferous tubules: sperm production, nourishment, and protection of sperm.
3. Epididymis: stores sperm, contributes to seminal fluid.
(iii) The scrotal sac acts as a thermoregulator. The temperature in the scrotal sac remains 2-3°C lower than the body temperature which is suitable for the maturation of sperm.
(iv) Through the inguinal canal, the sperm duct is connected and so passes the sperm to the urinary bladder.
(v) Semen is a mixture of mature sperm and secretions of’ various accessory glands. It is a milky fluid.
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संबंधित प्रश्न
Which one of the following is the correct route that a sperm follows when it leaves the testis of a mammal ?
Differentiate between spermatogenesis and spermiogenesis.
Given below is the schematic diagram of the sectional view of the human male reproductive system.
State the functions of the parts numbered 1, 2, 3, 5, 8 and 11.
Give Technical Term:
Name the male gamete of a mammal.
Draw a neat and labelled diagram.
Human male reproductive organs
In the following diagram, what are A and its function?
Small sac-like muscular structures that enclose testes.
List two roles of Seminal vesicles and prostate gland in the human reproductive system.
What is the significance of Testes being placed in Scrotal sacs?
State very briefly the chief function of the following:
Seminal vesicles
