29. The hormone that increases the flexibility of the pubic symphysis during pre

Question

29. The hormone that increases the flexibility of the pubic symphysis during pregnancy is: a. LH b. hPL c. cortisol d. hCG e. relaxin 30. The term syngamy refers to the: a. union of male and female pronuclei b. equatorial division of the secondary oocyte following penetration by a sperm cell c. functional changes that sperm undergo in the female reproductive tract that allow them to fertilize a secondary oocyte d. functional changes in the zona pellucida and entry into a secondary oocyte e. fusion of the sperm cell with secondary oocyte's membrane he part of the female reproductive system that is shed during menstruation is the: a. myometrium 31. T d. tunica albuginea e. germinal epithelium b. mucosa of the vagina c. functional zone of the endometriumm 32. When an infant suckles, which of the following are released: a. PRL b. oxytocin c. PRL and oxytocin d. estrogen e. PRL and progesterone 33. The source of all germ cells in the developing embryo is the: a. yolk sac b. allantois d. yolk stalk e. chorion c. cytotrophoblast 34. The term capacitation refers to: a. the union of male and female pronuclei b. equatorial division of the secondary oocyte following penetration bya sperm cell c. functional changes that sperm undergo in the female reproductive tract that enable them to fertilize the secondary oocyte d. functional changes in the zona pellucida caused by release of calcium ions e. a sperm cell's penetration of the zona pellucida and entry into a secondary oocyte

Explanation / Answer

29) The hormone that increases the flexibility of the pubic symphysis during pregnancy is relaxin (option e). The relaxin hormone is produced from ovary and placenta. It aids in normal delivery by relaxing the pelvic ligaments and ripening and softening of the cervix.

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