Neural control of micturition

Nerve control of the bladder

  1. Sympathetic: hypogastric nerve (T10-L2), involuntary control of bladder neck and intrinsic sphincter
  2. Parasympathetic: pelvic nerve (S2-S4), involuntary contraction of detrusor
  3. Somatic: pudendal nerve (S2-S4), voluntary contraction/relaxation of external sphincter
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