A. | the primary source of testosterone or androgens in males |
B. | male germ cells in the inside lining of seminiferous tubules |
C. | spermatids released from seminiferous tubules |
D. | Present in the inside lining of seminiferous tubules, they nourish developing sperm cells |
1. | Only A, B, and C | 2. | Only A, B, and D |
3. | Only B, C, and D | 4. | A, B, C, and D |
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The ducts of the seminal vesicles open into:
1. | Ejaculatory duct | 2. | Rete testis |
3. | Urethra | 4. | Vas deferens |
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Which of the following is not a male accessory sex gland?
1. | Bulbourethral gland | 2. | Testis |
3. | Prostate | 4. | Seminal vesicles |
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Which cell in the sperm lineage undergoes reduction division [meiosis]?
1. | Type A spermatogonia | 2. | Type B spermatogonia |
3. | Primary spermatocyte | 4. | Secondary spermatocyte |
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What is the number of chromosomes in each secondary spermatocyte?
1. | 23 | 2. | 46 |
3. | 69 | 4. | 92 |
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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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1. | B and C | 2. | B and D |
3. | A and E | 4. | C and E |
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FSH:
1. | Acts on Sertoli cells and stimulates secretion of some factors that help in spermiogenesis |
2. | Acts on Sertoli cells and inhibits secretion of some factors that help in spermiogenesis |
3. | Acts on Leydig cells and stimulates secretion of some factors that help in spermiogenesis |
4. | Acts on Leydig cells and inhibits secretion of some factors that help in spermiogenesis |
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The functions of male sex accessory ducts and glands are maintained by:
1. Hypothalamic releasing hormone
2. Pituitary gonadotropins
3. Adrenal cortex steroids
4. Testicular androgens
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Which of the following will carry 46 chromosomes?
1. | Sperms | 2. | Spermatids |
3. | Secondary spermatocytes | 4. | Primary spermatocytes |
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