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| {{toplink | | {{toplink |
− | |backcolour =EED2EE
| |
| |linkpage =Reproductive System - Anatomy & Physiology | | |linkpage =Reproductive System - Anatomy & Physiology |
| |linktext =Reproductive System | | |linktext =Reproductive System |
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| |pagetype =Anatomy | | |pagetype =Anatomy |
| |sublink1=Reproductive System - Anatomy & Physiology#Puberty | | |sublink1=Reproductive System - Anatomy & Physiology#Puberty |
− | |subtext1=PUBERTY | + | |subtext1=Puberty |
| }} | | }} |
| <br> | | <br> |
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| == Defeminizing the Hypothalamus in the Male == | | == Defeminizing the Hypothalamus in the Male == |
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− | * Testosterone crosses the [[Blood_Brain_Barrier_%28BBB%29|blood-brain barrier]] and is converted into oestradiol. | + | * Testosterone crosses the [[Blood Brain Barrier - Anatomy & Physiology|blood-brain barrier]] and is converted into oestradiol. |
| * In the brain, oestradiol 'defeminizes' the [[Hypothalamus_-_Anatomy_%26_Physiology|hypothalamus]]. | | * In the brain, oestradiol 'defeminizes' the [[Hypothalamus_-_Anatomy_%26_Physiology|hypothalamus]]. |
| * Surge centre function is minimized. | | * Surge centre function is minimized. |
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| * Foetal ovaries produce oestradiol, but this does NOT defeminize the [[Hypothalamus_-_Anatomy_%26_Physiology|Hypothalamus]]. | | * Foetal ovaries produce oestradiol, but this does NOT defeminize the [[Hypothalamus_-_Anatomy_%26_Physiology|Hypothalamus]]. |
− | * A protein called alpha-fetoprotein binds oestradiol to prevent it from crossing the [[Blood_Brain_Barrier_%28BBB%29|blood brain barrier]], therefore oestradiol cannot effect the [[Hypothalamus_-_Anatomy_%26_Physiology|Hypothalamus]]. | + | * A protein called alpha-fetoprotein binds oestradiol to prevent it from crossing the [[Blood Brain Barrier - Anatomy & Physiology|blood brain barrier]], therefore oestradiol cannot effect the [[Hypothalamus_-_Anatomy_%26_Physiology|Hypothalamus]]. |
| * Alpha-fetoprotein is synthesized firstly by the embryonic yolk sac and then by the foetal liver. | | * Alpha-fetoprotein is synthesized firstly by the embryonic yolk sac and then by the foetal liver. |
| * Alpha fetoprotein functions as: | | * Alpha fetoprotein functions as: |