<big><center>[[Endocrine System - Anatomy & Physiology|'''BACK TO ENDOCRINE SYSTEM ANATOMY & PHYSIOLOGY''']]</center></big>
<big><center>[[Endocrine System - Anatomy & Physiology|'''BACK TO ENDOCRINE SYSTEM ANATOMY & PHYSIOLOGY''']]</center></big>
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The [[Male Reproductive Tract -The Testes and Epididymis - Anatomy & Physiology|testes]] produce three main [[Endocrine System - Hormones - Anatomy & Physiology|hormones]].
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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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!Regulated by
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!Action
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|<font color=Purple>Testosterone</font>
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|Leydig Cells
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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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|<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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|Prevents secretion of further FSH from the [[Endocrine System - Pituitary Gland - Anatomy & Physiology|Pituitary Gland]].
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|<font color=Purple>Oestradiol<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.