innervation of urination

Nodos de los diagramas

• Parasympathetic  from pelvic nerves

• Sympathetic  from pelvic part of sympathetic chain

• Somatic from pudenal nerve

• Motor 

• Detrusor muscles

• relaxation of internal sphincter

• Urination

• Inhibitory 

• To detrusor

• Contracts internal sphincter

• Prevents urination

• Motor

• To external sphincter

• Contracts or relaxes external sphincter

• Controls urination