The Reproductive System Welcome to your The Reproductive System 1. Corpus luteum in mammals is present in Heart and initiates atrial contraction Ovaries and produces progesterone hormone Brain and connects the two cerebral hemispheres Skin and acts as a pain receptor2. When pregnancy does not occur the life of the corpus luteum is about 10 days 28 days 14 days 4 days3. Fertilization means The meeting of male and female gametes The fusion of nuclei of male and female gametes The transfer of male gamete to the female gamete The shedding of gametes from a reproductive organ4. The site of maturation of human sperms is the Interstitial cells Seminiferous tubule Epididymis Prostate gland5. In human males, the testes lie in the scrotum because it helps in the Secretion of oestrogen Formation of sperms Process of mating Easy transfer of gametes6. What will happen if the temperature of the scrotal sacs temporarily goes to about 2°C lower than normal temperature? Scrotal sacs will contract and come close to the body Testes will start rotation movement Sperm formation will be stopped Scrotal sacs will relax and do down away from the body7. Ovulation in mammals is a process in which The unfertilized egg passes out of female's body The egg is fertilized in fallopian tube The egg is released from Graafian follicle The egg passes through fimbriated funnel of fallopian tube8. Semen is the mixture of sperms and secretions from Prostate gland Cowper's glands All of these Seminal vesicles9. Which one of the following is the route that a sperm follows when it leaves the testes of a mammal? Epididymis→urethra→Vas deferens Urethra→epididymis→Vas deferens Vas deferens→epididymis→urethra Epididymis→Vas deferens→urethra10. If the vas deferens of a man are surgically disconnected or removed Semen will be without sperms Sperms in the semen will be without nuclei Sperms in semen will be non-motile Spermatogenesis will not take place11. Sterilization in the female involves cutting and tying the Uterus Ureter Urethra Oviduct12. The middle piece of the sperm provides Energy Chromosomes Gene Food13. In human beings, the fertilization occurs in the Uterus Ovaries Vagina Fallopian tubes14. In females, after how much time after fertilization does the fertilized egg get implanted in the uterine wall? Few months Three weeks One month About seven days15. The stoppage of menstruation in the female is termed as Ovulation Menopause Parthenogenesis Menarche16. The fixing of the blastocyst to the wall of the uterus or endometrium is called Gestation Implantation Fertilization Parturition17. The onset of menstruation in the female is termed as Menopause Menarche Ovulation Parthenogenesis18. The embryo in humans gets nutrition from the mother with the help of a special tissue called Womb Uterus Placenta Villi19. The normal gestation period in humans is 270 days 280 days 285 days 290 days20. Leydig cells produce Testosterone Oestrogen Semen Progesterone21 out of 20Please fill in the comment box below.
