| Term 
 | Definition 
 
        | A chemical produced at one site and has an effect at another site |  | 
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        | Term 
 | Definition 
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        | Term 
 | Definition 
 
        | the onset of puberty, sperm production and the menstrual cycle |  | 
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        | Term 
 
        | The pituitary gland produces |  | Definition 
 
        | Follicle stimulating hormone, interstitial cell stimulating hormone and luteinising hormone |  | 
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        | Term 
 | Definition 
 
        | promotes sperm production in the seminiferous tubles |  | 
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        | Term 
 | Definition 
 
        | stimulates the interstitial cells to produce testosterone |  | 
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        | Term 
 | Definition 
 
        | sperm production in the seminiferous tubules and activates the prostate gland and seminal vesicles |  | 
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        | Term 
 
        | High concentration of testosterone |  | Definition 
 
        | inhibits the secretion of FSH and ICSH by the pituitary |  | 
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        | Term 
 | Definition 
 
        | stimulates the development and maturation of each follicle and the secretion of oestrogen by the ovary tissue |  | 
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        | Term 
 | Definition 
 
        | triggers ovulation and the development of the corpus luteum from the follicle which in turn, secretes progesterone
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        | Term 
 
        | When the ovary wall secretes oestrogen it |  | Definition 
 
        | stimulates cell division  of the endometrium, repair of the endometrium and stimulates the pituitary to secrete LH |  | 
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        | Term 
 
        | The corpus luteum secretes progesterone which |  | Definition 
 
        | promotes development and vascularisation of the endometrium and inhibits secretion of FSH and LH by the pituitary |  | 
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        | Term 
 
        | The menstrual cycle lasts for |  | Definition 
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        | Term 
 
        | High concentrations of Oestrogen trigger |  | Definition 
 
        | production of LH and FSH by the pituitary gland at approx “day 14” of the menstrual cycle |  | 
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        | Term 
 
        | High concentrations of LH |  | Definition 
 
        | around day 14 causes ovulation to occur |  | 
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        | Term 
 
        | The Follicular Phase is the |  | Definition 
 
        | first half of the menstruation cycle |  | 
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        | Term 
 | Definition 
 
        | is the second half of the menstruation cycle |  | 
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        | Term 
 
        | High levels of oestrogen and progesterone during the luteal phase |  | Definition 
 
        | inhibit the pituitary gland, so concentrations of FSH and LH drop and no new follicle develops at this time |  | 
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        | Term 
 
        | If fertilisation does not occur |  | Definition 
 
        | low levels of LH leads to degeneration of the corpus luteum. Oestrogen and progesterone levels also rapidly drop. |  | 
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