<prompt> A 19 yrs old man met with accident and sustained internal injury in the abdomen. The fibres in the Nervus erigentes are lesioned , leading to disability loss of following function -EjaculationErectionSweatingSalivation  <response>: Nervi erigentes - Pelvic splanchnic nerve S2,3,4 causescontrols- Defecation Urination Erection of erectile tissues of the external genitalia Ejaculation and Sweating is controlled by sympathetic system . Salivation is controlled by parasympathetic system through cranial nerve 7 and cranial nerve 9. 