Fw: [問卦] 有沒有 射很多 的掛?已回收
※ [本文轉錄自 Gossiping 看板 #1II3flCK ]
作者: strong0716 (讓我教你宅字怎麼寫) 看板: Gossiping
標題: [問卦] 有沒有 射很多 的掛?
時間: Sun Sep 29 22:34:18 2013
根據維基百科部份內容︰
射精,是雄性動物性行為時將精液射出的反射性動作,對於人類,性成熟的男性通過性愛
動作抑或是自慰等方式達到性高潮時,生殖系統管道的強烈收縮,精液隨著射出體外。
過程、現象
射精過程雖然只發生在短暫的數秒之內,但其過程卻十分複雜,依發生的時間順序可分為
三部份,第一部份為洩精(Emission)即精液由副睪丸尾部、輸精管精囊及攝護腺排至後
尿道區。第二部份為後尿道和膀胱相接處的膀胱頸口通過閉合,以使精液不會逆向流入膀
胱。第三部份為射精,當精液洩到後尿道區,使得後尿道區膨脹,後尿道區周圍的感覺神
經接受體會感覺出這種膨脹,而將訊息傳到薦骨神經,然後由薦骨神經細胞體發出指令,
引起後尿道區周圍及骨盆腔底部的肌肉作收縮運動,並將精液射出體外。
通常正常男性在射精之前龜頭還會有透明的尿道球腺液分泌,有利後續射精。
人類男性因性高潮而達到射精階段時,通常會伴隨抽搐及呼吸急促等現象。同時生殖器也
會有極度興奮的生理反應出現。當精液由尿道排出體外後,血液開始從陰莖之海綿體消退
,陰莖隨之收縮。且通常收縮後龜頭的敏感度亦會增加許多。
人類男性在射精之後的一段時間之內,會對性刺激不再發生性反應。這段時間稱為不應期
。
好吧,這些不重要..
請看維基百科連結的附圖
http://zh.wikipedia.org/wiki/%E5%B0%84%E7%B2%BE
請問有沒有射很多的掛?
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◆ From: 125.230.97.33
※ 編輯: strong0716 來自: 125.230.97.33 (09/29 22:35)
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09/29 22:41, , 27F
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09/29 22:41, , 28F
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09/29 22:42, , 30F
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還有 53 則推文
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09/29 23:21, , 89F
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09/29 23:23, , 90F
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09/29 23:23, , 91F
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09/29 23:25, , 93F
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09/29 23:30, , 95F
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09/29 23:31, , 96F
09/29 23:31, 96F
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09/29 23:34, , 97F
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09/29 23:43, , 102F
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09/29 23:43, , 103F
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09/29 23:43, , 104F
09/29 23:43, 104F
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09/29 23:45, , 105F
09/29 23:45, 105F
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09/29 23:46, , 106F
09/29 23:46, 106F
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09/29 23:52, , 107F
09/29 23:52, 107F
※ 發信站: 批踢踢實業坊(ptt.cc)
※ 轉錄者: goodday5566 (61.231.217.127), 時間: 09/29/2013 23:58:30
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09/30 00:15, , 113F
09/30 00:15, 113F
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09/30 01:42, , 115F
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