Nerves Innervating the Urinary SystemN

Nerves innervating the urinary system include sympathetic from T10-L2 inhibiting bladder contraction and promoting sphincter tone for storage, parasympathetic from S2-4 stimulating detrusor and relaxing internal sphincter for voiding, somatic pudendal from S2-4 controlling external sphincter voluntarily, with sensory afferents signaling fullness.