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प्रश्न
Answer the following question based on the human male reproductive system:
In which organ sperms are formed?
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उत्तर
Sperms are formed in the testes of the human male reproductive system. The testes contain seminiferous tubules where the germinal epithelium divides by meiosis to produce sperm.
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संबंधित प्रश्न
Give appropriate biological/technical terms for the following:
The accessory gland in human males whose secretion activates the
sperms.
Name the following:
The tubular knot fitting like a cap on the upper side of the testis.
Given below is the outline of the male reproductive system.
(i) Name the parts labeled 1 to 5.
(ii) State the functions of the parts labeled 1 and 4.
(iii) Name the cells of part 5 that produce testosterone.
(iv) Why is structure 5 present outside the body in the scrotal sacs?
(v) What is semen?
Name the Following
The structure in which testes are present in man.
How is the semen produced?
The given diagram represents T. S of
How much semen is generally present in seminal fluid?
In the male reproductive system, the vasa efferentia opens into the ______.
Spermatids are transformed into sperm by a process called ______.
Ejaculation of human male contains about 200 - 300 million sperms, of which for normal fertility ______% sperms must have normal shape and size and at least ______% must show energetic motility.
Along the path of the vas-deferens the secretions of which gland provide nutrition to the sperms?
Crypts of Lieberkuhn are absent in ______.
______ is the smallest cell in males.
How do sperms develop?
Given below is a certain situation. Analyze and describe its possible impact on a person:
Prostate and seminal vesicles are not functional.
List two roles of the Testis in the human reproductive system.
Match the items given in Column I with the most appropriate ones in Column II and rewrite the correct matching pairs:
| Column I | Column II | ||
| (a) | Leydig Cells | 1. | Lack of thyroxine in children |
| (b) | Stoma | 2. | 12 pairs |
| (c) | Ova | 3. | Testosterone |
| (d) | Cranial nerve | 4. | Diffusion of respiratory gases |
| (e) | Cretinism | 5. | Haploid cells |
| 6. | 31 Pairs | ||
| 7. | Diploid cells |
State very briefly the chief function of the following:
Sperm duct (vas deferens)
