閉鎖神経

閉鎖神経(英: obturator nerve)とは第2、第3、第4腰神経の腹側から分枝する神経であり、第3腰神経からのものが最も大きく、第2腰神経からのものは非常に小さい。

神経支配

閉鎖神経は大腿内側面の皮膚の知覚神経、股関節を構成する内転筋（外閉鎖筋、長内転筋、短内転筋、小内転筋、大内転筋、薄筋）を支配する。

分枝
  • 関節枝
  • 閉鎖神経前枝
  • 閉鎖神経後枝
  • 閉鎖神経皮枝

画像
  • Sacral plexus of the right side.
    Sacral plexus of the right side.
  • Right hip bone. Internal surface.
    Right hip bone. Internal surface.
  • Left Levator ani from within.
    Left Levator ani from within.
  • The Obturator externus.
    The Obturator externus.
  • The arteries of the pelvis.
    The arteries of the pelvis.
  • Variations in origin and course of obturator artery.
    Variations in origin and course of obturator artery.
  • The relations of the femoral and abdominal inguinal rings, seen from within the abdomen. Right side.
    The relations of the femoral and abdominal inguinal rings, seen from within the abdomen. Right side.
  • Plan of lumbar plexus.
    Plan of lumbar plexus.
  • The lumbar plexus and its branches.
    The lumbar plexus and its branches.
  • Deep and superficial dissection of the lumbar plexus.
    Deep and superficial dissection of the lumbar plexus.
  • Dissection of side wall of pelvis showing sacral and pudendal plexuses.
    Dissection of side wall of pelvis showing sacral and pudendal plexuses.


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