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10 Cards in this Set
- Front
- Back
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Pathway of anterior pituitary hormone release?
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1) neurosecretory neurons
2) hypothalamus 3) hypothalamaic-hypophyseal portal system 4) anterior pituitary 5) Systemic venous outflow |
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Releasing factors from hypothalamus
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GnRH, GHRH, TRH, CRH, Dopamine
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What is Kallman's syndrome?
epidemiol, physiol. |
1/10,000 male
1/50,000 female no GnRH neurons in hypothalmus = hypogonadotrophic hypogonadism |
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Describe secretion of GnRH
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pulsatile, 5-10min of intense secretion, 1hr inactivity follows,
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What does the pituitary response to GnRH depend on?
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pulse frequency
pulse amplitude |
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What is secreted during follicular phase
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Oestradiol due to FSH secretion
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funciton of oestradiol
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rapid and contiuous growth and maturation of the endometrium
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What hormone causes ovulation
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LH with the LH surge and
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stages of ovarian cycle
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follicular phase (0-14)
luteal phase (14-28) |
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stages of endometrial cycle
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menses (menstruation) (0-4)
proliferative (4-14) secretory (14-28) |
