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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
____________ contribute about 60% of the total volume of the semen.
Complete the following statement by choosing the correct alternative:
Male copulatory organ ______.
Hormones related to male reproductive system.
Which hormone controls the secondary sexual characters in males?
Each testis is connected to the wall of scrotum by short. fibromuscular band called ______.
Spermatids are transformed into sperm by a process called ______.
Mature sperms in humans are stored in ______.
What is the significance of epididymis in male fertility?
Given below is a certain situation. Analyze and describe its possible impact on a person:
Testes of a male boy are not able to descend into the scrotum during his embryonic development.
Given below is a certain situation. Analyze and describe its possible impact on a person:
Prostate and seminal vesicles are not functional.
