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
The final release of sperms from the seminiferous tubules is called:
| 1. | Spermiation | 2. | Emission |
| 3. | Retrograde ejaculation | 4. | Ejaculation |
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 |
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
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
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 |
The division of primary oocyte results in:
| 1. | unequal cells – a smaller haploid secondary oocyte and a larger diploid polar body |
| 2. | unequal cells – a larger haploid secondary oocyte and a smaller haploid polar body |
| 3. | unequal cells – a smaller diploid secondary oocyte and a larger haploid polar body |
| 4. | equal cells – a haploid secondary oocyte and a haploid polar body |
Leydig cells synthesize androgens under the direct influence of:
| 1. | FSH | 2. | LH |
| 3. | FSH and LH | 4. | GnRH |
For normal fertility, what percent of the sperm in ejaculate must exhibit normal morphology?
| 1. | 20 | 2. | 30 |
| 3. | 40 | 4. | 60 |
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 |
© 2024 GoodEd Technologies Pvt. Ltd.