The testes are situated outside the abdominal cavity within a pouch called 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 testes necessary for spermatogenesis

4. Scrotum can store huge amounts of sperms

Subtopic:  Male Reproductive System |
 96%
From NCERT
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Each seminiferous tubule is lined on its inside by:

1. Spermatogonia

2. Primary spermatocytes

3. Sertoli cells

4. Both 1 and 3

Subtopic:  Seminiferous Tubules & Spermatogenesis |
 72%
From NCERT
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Leydig cells:

1. Are present in seminiferous tubules and secrete androgens

2. Are present in seminiferous tubules and help in maturation of sperms

3. Are present in interstitial space and secrete androgens

4. Are present in interstitial space and help in maturation of sperms

Subtopic:  Seminiferous Tubules & Spermatogenesis |
 73%
From NCERT
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Seminal plasma is rich in:

1. Sucrose, calcium and certain enzyme

2. Glucose, sodium and certain enzymes

3. Fructose, calcium and certain enzymes

4. Fructose, sodium and certain enzymes

Subtopic:  Semen and Male Fertility |
 88%
From NCERT
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Each Ovary is connected to the pelvic wall and the uterus by:

1. Peritoneum

2. Adipose tissue

3. Ligaments

4. Areolar tissue

Subtopic:  Ovary |
 83%
From NCERT
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Consider the following two statements:

I. The hymen is often torn during the first coitus.

II. The presence or absence of hymen is a reliable indicator of virginity.

Of the two statements:

1. Both I and II are correct and II explains I.

2. Both I and II are correct and II does not explain I.

3. I is correct but II is incorrect.

4. Both I and II are incorrect.

Subtopic:  Female External Genitalia |
 83%
From NCERT
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The correct sequence of mammalian mammary gland ducts beginning from alveoli would he:

1. Mammary tubules → Mammary ducts →  Mammary ampulla → Lactiferous ducts
2. Lactiferous duds  → Mammary ducts → Mammary ampulla → Mammary tubules
3. Lactiferous ducts → Mammary arnpula → Mammary ducts → Mammary tubules
4. Mammary tubules → Mammary ampulla → Mammary ducts → Lactiferous ducts
Subtopic:  Mammary Gland & Lactation |
 80%
From NCERT
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The spermatids are transformed into spermatozoa by the process called:

1. Spermiation

2. Spermatocytogenesis

3. Spermiogenesis

4. Spermatolysis

Subtopic:  Spermiogenesis/Sperm Structure/Hormonal Regulation |
 74%
From NCERT
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The final release of sperms from the seminiferous tubules is called:

1. Spermiation

2. Emission

3. Retrograde ejaculation

4. Ejaculation

Subtopic:  Spermiogenesis/Sperm Structure/Hormonal Regulation |
 83%
From NCERT
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For normal fertility what percent of the sperm in ejaculation must exhibit vigorous motility?

1. 20

2. 30

3. 40

4. 60

Subtopic:  Semen and Male Fertility |
 72%
From NCERT
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