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[[Female Reproductive Tract -Oestrous Cycle - Anatomy & Physiology|Oestrus Cycle]]
 
[[Female Reproductive Tract -Oestrous Cycle - Anatomy & Physiology|Oestrus Cycle]]
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{| border="1" cellpadding="5" cellspacing="0"
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|+ ''Hormones of the Testes''
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!Hormone
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!Produced by
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!Regulation
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!Action
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|-
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|<font color=Purple>Oestrogen</font>
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|
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|GnRH from the [[Endocrine System - Hypothalamus - Anatomy & Physiology|Hypothalamus]] causes LH secretion from the [[Endocrine System - Pituitary Gland - Anatomy & Physiology|Pituitary Gland]] which stimulates the Leydig Cells.
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|This hormone controls and maintains the growth and functions of the reproductive organs. It enhances libido and is essential for spermatogenesis.
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|-
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|<font color=Purple>Progesterone</font>
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|Sertoli Cells
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|GnRH from the [[Endocrine System - Hypothalamus - Anatomy & Physiology|Hypothalamus]] causes FSH secretion from the [[Endocrine System - Pituitary Gland - Anatomy & Physiology|Pituitary Gland]] which stimulates the Sertoli Cells.
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|Prevents secretion of further FSH from the [[Endocrine System - Pituitary Gland - Anatomy & Physiology|Pituitary Gland]].
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|-
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|<font color=Purple>Inhibin<font>
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|Sertoli Cells
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|GnRH from the [[Endocrine System - Hypothalamus - Anatomy & Physiology|Hypothalamus]] causes FSH secretion from the [[Endocrine System - Pituitary Gland - Anatomy & Physiology|Pituitary Gland]] which stimulates the Sertoli Cells.
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|Converted from testosterone, this hormone's function is complex. It may prevent apoptosis of male germ cells.
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|-
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|<font color=Purple>Relaxin<font>
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|Sertoli Cells
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|GnRH from the [[Endocrine System - Hypothalamus - Anatomy & Physiology|Hypothalamus]] causes FSH secretion from the [[Endocrine System - Pituitary Gland - Anatomy & Physiology|Pituitary Gland]] which stimulates the Sertoli Cells.
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|Converted from testosterone, this hormone's function is complex. It may prevent apoptosis of male germ cells.
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|-
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|<font color=Purple>[[Endocrine System - <font>
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|Sertoli Cells
 +
|GnRH from the [[Endocrine System - Hypothalamus - Anatomy & Physiology|Hypothalamus]] causes FSH secretion from the [[Endocrine System - Pituitary Gland - Anatomy & Physiology|Pituitary Gland]] which stimulates the Sertoli Cells.
 +
|Converted from testosterone, this hormone's function is complex. It may prevent apoptosis of male germ cells.
 +
|}
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