Question

31. Which of the following is not true about hCG (human chorionic gonadotropin)? a. secretion of hCG helps maintain the corpus luteum b. secretion of hCG inhibits secretion of GnRH and FSH c. secretion of hCH promotes mentruation d. secreted by the implanted embryo

32. If peak estrogen and progesterone levels were maintained past the normal luteal stage, this would not result in which of the following? a. more severe endometrial shedding (heavier periods) b. continued suppression of GnRH secretion c. continued suppression of FSH secretion d. suppression of new follicle development

33. Peak estrogen and progesterone levels maintained past normal luteal stage would be associated with a. embryo development b. menstruation c. ovulation d. menopause e. primary follicle development

34. Which of the following is part of the primary follicle? a. corpus luteum b. corpus albicans c. ovum d. primary oocyte e. secondary oocyte

Answer 1

31. Option c is correct because-

Human chorionic gonadotropin (hCG, or human chorionic gonadotrophin) is a placental hormone initially secreted by cells (syncitiotrophoblasts) from the implanting conceptus during week 2, supporting the ovarian corpus luteum, which in turn supports the endometrial lining and therefore maintains pregnancy.

32. option a is correct because-

In ovulation, levels of another hormone called progesterone begin to increase. Progesterone prepares the endometrium to receive and nourish a fertilized egg. If pregnancy does not occur, estrogen and progesterone levels decrease. The decrease in progesterone triggers menstruation, or shedding of the lining.

33. Option c is correct because-

Once ovulation occurs, the follicle that contained the egg transforms into something called a corpus luteum and begins to produce progesterone as well as estrogen . Progesterone levels peak about halfway through this phase.

​​​​​34. Ovum: Option c is correct because-

Each of them contains a single oocyte (immature ovum or egg cell). These structures are periodically initiated to grow and develop, culminating in ovulation of usually a single competent oocyte in humans.