View source for Androgen

Androgen is one of the five major classes of [[steriod hormones|steroid hormones]], essential in the development of [[male secondary sex characteristics|secondary male sex characteristics]].&nbsp;Androgens have vital actions on the [[Brain|brain]], and are responsible for development of male sexual behaviour and [[Muscle|muscle]] mass, as well as maintenance of the[[testes|testes]]. <ref>Berg, JM., Tymoczo, JL., Stryer, L., and Gatto, Jr, Gj. (2012). Biochemistry. 7th ed. New York: W. H. Freeman and Company. 808 - 812.</ref>

Androgens are synthesised from[[Cholesterol|cholesterol]] in the inner (zona reticularis) and middle layers of the [[Adrenal_cortex|adrenal cortex]], and are converted to [[Testosterone|testosterone]] in the peripheral tissues and testes. <ref>Harvey, RA. and Ferrier, Dr. (2011). Lippincott's Illustrated Reviews: Biochemistry. 5th ed. Philadelphia: Wolters Kluwer. 237 - 239.</ref><br>

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