Term
What does the hypothalamus produce to trigger the onset of puberty? |
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Definition
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Term
What is the target tissue for the releaser hormone secreted by the hypothalamus? |
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Definition
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Term
Name the two hormones produced by the pituitary hormone in males? |
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Definition
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Term
Name the two hormones produced by the pituitary hormone in females? |
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Definition
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Term
State the target and effect of FSH in males. |
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Definition
promotes sperm production in the seminiferous tubules of the testes |
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Term
State the target and effect of FSH in females. |
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Definition
follicle, stimulates the development and maturation of a follicle and the production of oestrogen |
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Term
State the target and effect of ICSH in males. |
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Definition
stimulates the interstitial cells in the testes to produce the male sex hormone testosterone |
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Term
State the targets and effect of testosterone. |
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Definition
stimulates sperm production in the seminiferous tubules & activates the secretion of fluids by the prostate gland and seminal vesicles |
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Term
What is the effect of high levels of testosterone on the pituitary gland? |
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Definition
inhibits the release of FSH and ICSH |
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Term
What is the name of the ability of testosterone to control its production? |
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Definition
negative feedback control |
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Term
Name the two phases of the menstrual cycle. |
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Definition
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Term
What effect does oestrogen have on the endometrium? |
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Definition
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Term
What effect does oestrogen have on the cervical mucus? |
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Definition
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Term
What effect does a high level of oestrogen have on the pituitary gland? |
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Definition
stimulates the release of LH |
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Term
What event in the menstrual cycle is triggered by the surge of LH? |
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Definition
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Term
What effect does LH have on the follicle? |
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Definition
stimulates it to change into a corpus luteum |
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Term
Which hormone is secreted by the corpus luteum? |
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Definition
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Term
What effect does progesterone have on the cervical mucus? |
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Definition
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Term
What effect does a high level of progesterone have on the pituitary gland? |
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Definition
inhibits the production of LH ans FSH |
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Term
What effect does progesterone have on the endometrium? |
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Definition
causes further thickening / vascularisation |
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Term
How many days does one menstrual cycle typically last ? |
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Definition
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Term
What event marks day one of the menstrual cycle? |
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Definition
the first day of mentruation |
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Term
When in the menstrual cycle does ovulation typically occur? |
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Definition
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Term
What causes the endometrium to break down at the end of the menstrual cycle? |
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Definition
falling progesterone levels |
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