45. The Act of Micturation occurs during a. parasympathetic stimulation b. motor
ID: 3479819 • Letter: 4
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45. The Act of Micturation occurs during a. parasympathetic stimulation b. motor neuron stimulation c. parasympathetic inhibition d. motor neuron inhibition e. Both a and d All of the following occur during the ovarian cycle, except a. follicles undergo development and ultimately become an ova b. ovulation occurs around day 14 of a 28-day cycle c. follicle cells that remain after ovulation form a structure called the corpus luteum d. follicle cells are reabsorbed by the ovary 'Menstruation' is triggered by a drop in the levels of a. FSH b. LH c. relaxin d. progesterone e. human chorionic gonadotropin During the 'menses' a. ovulation occur b. a new uterine lining is formed c. secretory glands and blood vessels develop in the endometrium d. the old endometrial layer is sloughed off e. the corpus luteum is formed In which of the following would the level of GnRH be higher? a. a normal adult male b. a castrated adult male The surge in 'luteinizing hormone' that occurs during the middle of the ovarian cycle triggers a. follicle maturation b. menstruation c. ovulation d. menopause e. atresia 46. 47. 48. 49. 50. In the Female which of the following is greater? a. the level of cellular metabolism when progesterone levels are high b. the level of cellular metabolism when progesterone levels are low For an erection and ejaculation to occur a. there must be sufficient blood hydrostatic pressure b. the parasympathetic and sympathetic branches of the nervous system must be properly functioning c. the urinary sphincters must be open d. a and b only e. all of the above 51. 52.Explanation / Answer
45. (a) parasympathetic stimulation
parasympathetic stimulation causes the contraction of detrusor muscle and relaxation of internal urethral sphincter which leads to micturition.
46. (a) follicles undergoes development and ecome ova.
this doesnt take place during ovarian cycle. All the ova present in the ovaries are formed
before birth. No new ovum is developed after birth.
47.(d) progesterone
sudden drop in estrogen and progesterne causes shedding of endometrial lining and start of menstruation.
48. (d) old endometrial lining is sloughed off
due to drop in estrogen and progesterone, endometrial lining breaks and commences menstruation blood flow.
49. (b) castrated adult male
Low levels of testosterone result in increased production of LH.Without testosterone production, LH production goes into overdrive without the resulting testosterone increase.
50. (c) ovulation
surging level of LH causes the rupture of ovarian follicle and release of ovum from the ovary.
51.(b) when the progesterone levels are low the cellular metabolic rate is high.
52.(b) parasympathetic and sympathetic branches should be working properly
the parasympathetic stimulation of penile tissue causes release of nitric oxide causing penile erection
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