InterviewSolution
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InterviewSolution
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Given below is the outline of the male reproductive system :(i) Name the parts labelled 1 to 5. (ii) State the functions of the parts labelled 1 and 4. (iii) Name the cells of part 5 that produce testosterone. (iv) Why is the structure 5 present outside the body in the scrotal sacs ? (v) What is semen ? |
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Answer» (i) 1—Seminal vesicle 2—Prostate gland 3— Urethra 4— Sperm duct/vas deferens 5—Testis. (ii) Part 1—Its secretion serves as a medium for the transportation of the sperms. Part 2—It carry the sperms. (iii) Leydig cells or interstitial cells of part 5 produces testosterone. (iv) The structure 5 is present outside the body in the scrotal sac because sperms are produced at 2 to 3°C lower than that of body temperature so, when too hot the skin of scrotal sac looses and testes are away from the body and when it is cold the skin contracts and testis are closer to the body for warmth. (v) Semen—The mixture of seminal vesicles secretios and sperms produces a milky fluid, which is called semen. |
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