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冠狀溝

冠狀溝
冠狀溝。(紅框標示區域中的溝狀構造,圖中白色點狀物為陰莖珍珠狀丘疹,目前學界大多認為這是一種正常的生理變異。)
标识字符
拉丁文corona glandis penis
TA98A09.4.01.008
TA23669
FMAFMA:19627
格雷氏p.1249
解剖學術語

冠狀溝陰莖頸的俗稱,是男性陰莖龜頭下缘的一圈沟状构造。尿道海绵体前端膨大成龟头時,於龜頭基部形成。为阴茎十分敏感的部位,此处性刺激可达性高潮并发生射精

冠狀溝平時為陰莖外面的包皮所覆盖。一般在陰莖勃起時,包皮可能仍然包住部分龜頭而冠狀溝並沒有露出。但可以將包皮扒開使龜頭完全裸露,並露出冠狀溝。若剝開包皮使冠狀溝露出會造成不適,或者無法剝至冠狀溝露出,則這種情況稱之為包莖而非包皮過長,可能影響性行為與繁衍後代。有必要實施包皮環切術 也稱為割包皮。

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冠狀溝
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