Pudendal plexus
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The anterior rami of the sacral nerves (2nd, 3rd, and 4th) are the plexus of nerves that supply the pelvic organs and the perineum. The largest branch is the pudendal nerve, which further divides into the inferior rectal nerve, the perineal nerve, and the dorsal nerve of the penis. There are also several visceral and muscular branches. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
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第2，第3，第4仙骨神経の前枝から成る神経叢で，その枝は骨盤内臓器および会陰部に分布する。最大の枝は陰部神経で，これはさらに下直腸神経，会陰神経，陰茎背神経に分れる。このほか若干の内臓枝と筋枝がある。
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