Q. No.The testes are situated outside the abdominal cavity within a pouch called the scrotum. This is necessary as:
| 1. | The scrotum can contain lengthy ducts for the transfer of sperms |
| 2. | Scrotum helps in maintaining the low temperature of the testes necessary for spermatogenesis |
| 3. | Scrotum reduces the pressure around the testes necessary for spermatogenesis |
| 4. | Scrotum can store huge amounts of sperms |
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Each seminiferous tubule is lined by male germ cells called:
| 1. | Spermatogonia | 2. | Primary spermatocytes |
| 3. | Sertoli cells | 4. | Leydig cells |
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Leydig cells:
| 1. | Are present in seminiferous tubules and secrete androgens |
| 2. | Are present in seminiferous tubules and help in the maturation of sperms |
| 3. | Are present in interstitial space and secrete androgens |
| 4. | Are present in interstitial space and help in the maturation of sperms |
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The correct sequence of male sex accessory ducts beginning from testis would be:
| 1. | rete testis → vasa efferentia → epididymis → vas deferens |
| 2. | rete testis → vas deferens → vasa efferentia → epididymis |
| 3. | vas deferens → vasa efferentia → epididymis → rete testis |
| 4. | vasa efferentia → vasa deferens → epididymis → rete testis |
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Seminal plasma is rich in:
1. Sucrose, calcium and certain enzymes
2. Glucose, sodium and certain enzymes
3. Fructose, calcium and certain enzymes
4. Fructose, sodium and certain enzymes
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The birth canal is formed by:
1. Vagina alone
2. Vagina and the cervix
3. Vagina, cervix and uterus
4. Vagina, cervix, uterus and oviducts
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The correct sequence of mammalian mammary gland ducts beginning from the alveoli would be:
| 1. | Mammary tubules → Mammary ducts → Mammary ampulla → Lactiferous ducts |
| 2. | Lactiferous ducts → Mammary ducts → Mammary ampulla → Mammary tubules |
| 3. | Lactiferous ducts → Mammary ampulla → Mammary ducts → Mammary tubules |
| 4. | Mammary tubules → Mammary ampulla → Mammary ducts → Lactiferous ducts |
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The spermatids are transformed into spermatozoa by a process called:
| 1. | Spermiation | 2. | Spermatocytogenesis |
| 3. | Spermiogenesis | 4. | Spermatolysis |
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The final release of sperms from the seminiferous tubules is called:
| 1. | Spermiation | 2. | Emission |
| 3. | Retrograde ejaculation | 4. | Ejaculation |
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Which of the following helps spermatids in their transformation to sperms?
| 1. | Leydig cells | 2. | Type B spermatogonia |
| 3. | Type A spermatogonia | 4. | Sertoli cells |
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