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
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
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
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 |
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
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
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 |
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
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 |
The part of the fallopian tube closest to the ovary is:
| 1. | isthmus | 2. | infundibulum |
| 3. | cervix | 4. | ampulla |
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