Q. No.The Leydig cells as found in the human body are the secretory source of:
1.
progesterone
2.
intestinal mucus
3.
glucagon
4.
androgens
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If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not be transported from:
1. epididymis to vas deferens
2. ovary to uterus
3. vagina to uterus
4. testes to epididymis
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The figure given below depicts a diagrammatic sectional view of the female reproductive system of humans. Which one set of three parts out of A-F have been correctly identified?
1. C-lnfundibulum, D-Fimbriae, E-Cervix
2. D-Oviducal funnel, E-Uterus, F-Cervix
3. A-Perimetrium, B-Myometrium, C-Fallopian tube
4. B-Endometrium, C-Infundibulum, D-Fimbriae
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The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is for:
| 1. | escaping any possible compression by the visceral organs |
| 2. | providing more space for the growth of epididymis |
| 3. | providing a secondary sexual feature for exhibiting the male sex |
| 4. | maintaining the scrotal temperature lower than the internal body temperature |
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Sertoli cells are found in
1. ovaries and secrete progesterone
2. adrenal cortex and secrete adrenalin
3. seminiferous tubules and provide nutrition to germ cells
4. pancreas and secrete cholecystokinin
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Vasa efferentia are the ductules leading from
1. testicular lobules to rete testis
2. rete testis to vas deferens
3. vas deferens to epididymis
4. epididymis to urethra
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The second maturation division of the mammalian ovum occurs:
| 1. | shortly after ovulation before the ovum makes an entry into the Fallopian tube |
| 2. | after the ovum has been penetrated by a sperm |
| 3. | until the nucleus of the sperm has fused with that of the ovum |
| 4. | in the Graafian follicle following the first maturation division |
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Which one of the following statements about human sperm is correct?
1. Acrosome has a conical pointed structure used for piercing and penetrating the egg, resulting in fertilization
2. The sperm lysins in the acrosome dissolve the egg envelope facilitating fertilization
3. Acrosome serves as a sensory structure leading the sperm towards the ovum
4. Acrosome serves no particular function
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Which one of the following statements about morula in humans is correct?
| 1. | It has an almost equal quantity of cytoplasm as an uncleaved zygote but much more DNA |
| 2. | It has far less cytoplasm as well as less DNA than in an uncleaved zygote |
| 3. | It has a more or less equal quantity of cytoplasm and DNA as in an uncleaved zygote |
| 4. | It has more cytoplasm and more DNA than an uncleaved zygote |
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The part of the fallopian tube closest to the ovary is:
| 1. | isthmus | 2. | infundibulum |
| 3. | cervix | 4. | ampulla |
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