Podcast
Questions and Answers
What is the mechanism by which LH stimulates progesterone secretion in the corpus luteum?
What is the mechanism by which LH stimulates progesterone secretion in the corpus luteum?
- Inhibition of protein synthesis and subsequent activation of adenylyl cyclase
- Activation of adenylyl cyclase and subsequent protein synthesis (correct)
- Inhibition of adenylyl cyclase and subsequent reduction of protein synthesis
- Stimulation of phosphodiesterase and subsequent reduction of cAMP
What is the effect of progesterone on the myometrial cells?
What is the effect of progesterone on the myometrial cells?
- Increases their excitability and sensitivity to oxytocin
- Increases their membrane potential and spontaneous electrical activity
- Decreases their excitability and sensitivity to oxytocin (correct)
- Has no effect on their excitability and sensitivity to oxytocin
What is the effect of progesterone on estrogen receptors in the endometrium?
What is the effect of progesterone on estrogen receptors in the endometrium?
- Decreases their number and activity (correct)
- Increases their number and activity
- Increases their number but decreases their activity
- Has no effect on their number and activity
What is the role of progesterone in the breast during lactation?
What is the role of progesterone in the breast during lactation?
What is the effect of large doses of progesterone on LH secretion?
What is the effect of large doses of progesterone on LH secretion?
What is the physiological effect of progesterone in terms of body temperature?
What is the physiological effect of progesterone in terms of body temperature?
What triggers the initiation of lactation after delivery in women?
What triggers the initiation of lactation after delivery in women?
Why do women who do not wish to breastfeed their babies receive estrogen administration?
Why do women who do not wish to breastfeed their babies receive estrogen administration?
What is the primary effect of estrogen on milk production in women?
What is the primary effect of estrogen on milk production in women?
What is the primary stimulus for milk ejection and oxytocin release in women?
What is the primary stimulus for milk ejection and oxytocin release in women?
What is the composition of colostrum compared to milk?
What is the composition of colostrum compared to milk?
How long does it take for milk secretion to surge after delivery in women?
How long does it take for milk secretion to surge after delivery in women?
What is the primary difference between the reproductive system of men and women?
What is the primary difference between the reproductive system of men and women?
What is the average length of a menstrual cycle in women?
What is the average length of a menstrual cycle in women?
What is the term for the periodic vaginal bleeding that occurs with the shedding of the uterine mucosa?
What is the term for the periodic vaginal bleeding that occurs with the shedding of the uterine mucosa?
What is the primary cause of male sexual behavior and pattern of gonadotropin secretion in some species?
What is the primary cause of male sexual behavior and pattern of gonadotropin secretion in some species?
What is the function of the antrum in the ovarian cycle?
What is the function of the antrum in the ovarian cycle?
What is the role of gonadotropins from the anterior pituitary in reproductive development?
What is the role of gonadotropins from the anterior pituitary in reproductive development?
What is the term for the decline in the function of the testes with advancing age?
What is the term for the decline in the function of the testes with advancing age?
What is the effect of hormones secreted by the gonads during adolescence?
What is the effect of hormones secreted by the gonads during adolescence?
What is the pattern of ovarian function in human females?
What is the pattern of ovarian function in human females?
What is the purpose of the cyclic changes in the female reproductive system?
What is the purpose of the cyclic changes in the female reproductive system?
What is the dual function of the gonads in both sexes?
What is the dual function of the gonads in both sexes?
What is the pattern of androgen secretion in the ovaries compared to the testes?
What is the pattern of androgen secretion in the ovaries compared to the testes?
At what age range does menopause typically occur?
At what age range does menopause typically occur?
What percentage of menopausal women experience hot flushes?
What percentage of menopausal women experience hot flushes?
What is the cause of hot flushes in menopausal women?
What is the cause of hot flushes in menopausal women?
What is prevented by estrogen treatment in menopausal women?
What is prevented by estrogen treatment in menopausal women?
What initiates both the release of LH and the episode of flushing in menopausal women?
What initiates both the release of LH and the episode of flushing in menopausal women?
What is the approximate age range during which menopause typically occurs?
What is the approximate age range during which menopause typically occurs?
Which hormone is released in episodic bursts at intervals of 30-60 minutes or more during menopause?
Which hormone is released in episodic bursts at intervals of 30-60 minutes or more during menopause?
What is the percentage of menopausal women who experience hot flushes?
What is the percentage of menopausal women who experience hot flushes?
What is the event that initiates both the release of LH and the episode of flushing in menopausal women?
What is the event that initiates both the release of LH and the episode of flushing in menopausal women?
What is the average age at which menopause typically occurs?
What is the average age at which menopause typically occurs?
What is the duration for which hot flushes may continue intermittently in menopausal women?
What is the duration for which hot flushes may continue intermittently in menopausal women?
What is the primary function of the reduction in membrane potential of the ovum after fertilization?
What is the primary function of the reduction in membrane potential of the ovum after fertilization?
What is the structural change that occurs in the zona pellucida after fertilization?
What is the structural change that occurs in the zona pellucida after fertilization?
How long does it take for the blastocyst to reach the uterus after fertilization?
How long does it take for the blastocyst to reach the uterus after fertilization?
What is the term for the multi-nucleate mass that surrounds the blastocyst after it reaches the uterus?
What is the term for the multi-nucleate mass that surrounds the blastocyst after it reaches the uterus?
What is the usual site of implantation of the blastocyst in the uterus?
What is the usual site of implantation of the blastocyst in the uterus?
What develops from the trophoblast after implantation?
What develops from the trophoblast after implantation?
What is the primary function of the corpus luteum during pregnancy?
What is the primary function of the corpus luteum during pregnancy?
What hormone secreted by the placenta takes over the function of the corpus luteum after the sixth week of pregnancy?
What hormone secreted by the placenta takes over the function of the corpus luteum after the sixth week of pregnancy?
What is the composition of human chorionic gonadotropin (hCG)?
What is the composition of human chorionic gonadotropin (hCG)?
What is the effect of progesterone on the uterus during pregnancy?
What is the effect of progesterone on the uterus during pregnancy?
When does the function of the corpus luteum begin to decline during pregnancy?
When does the function of the corpus luteum begin to decline during pregnancy?
What is the pattern of human chorionic gonadotropin (hCG) secretion during pregnancy?
What is the pattern of human chorionic gonadotropin (hCG) secretion during pregnancy?
What is the function of LH receptors in theca interna cells?
What is the function of LH receptors in theca interna cells?
What is the primary function of granulosa cells in the ovarian cycle?
What is the primary function of granulosa cells in the ovarian cycle?
What percentage of circulating estradiol is free?
What percentage of circulating estradiol is free?
What is the fate of estradiol, estrone, and estriol in the liver?
What is the fate of estradiol, estrone, and estriol in the liver?
What is the significance of enterohepatic circulation in the metabolism of estradiol?
What is the significance of enterohepatic circulation in the metabolism of estradiol?
What is the role of FSH in granulosa cells?
What is the role of FSH in granulosa cells?
What is the typical duration of amenorrhea in women who breastfeed regularly?
What is the typical duration of amenorrhea in women who breastfeed regularly?
What is the effect of prolactin on GnRH secretion?
What is the effect of prolactin on GnRH secretion?
What percentage of women become pregnant again during the suckling period?
What percentage of women become pregnant again during the suckling period?
What is the percentage of anovulatory cycles in the first 6 months after resumption of menses?
What is the percentage of anovulatory cycles in the first 6 months after resumption of menses?
What is the primary function of the gonads in both sexes?
What is the primary function of the gonads in both sexes?
What is the difference between males and females that depends primarily on a single chromosome?
What is the difference between males and females that depends primarily on a single chromosome?
