What nerve serves the muscles of the perineum?
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It also innervates the external anal sphincter (inferior rectal nerve) and deep muscles of the urogenital triangle (perineal nerve). The perineal nerve is situated below the internal pudendal artery and divides into a posterior labial branch and a muscular branch.
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It also innervates the external anal sphincter (inferior rectal nerve) and deep muscles of the urogenital triangle (perineal nerve). The perineal nerve is situated below the internal pudendal artery and divides into a posterior labial branch and a muscular branch.
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