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 -: (A) Ejaculation, (B) Erection, (C) Sweating, (D) Salivation
Answer is B. Nervi erigentes - Pelvic splanchnic nerve (S2,3,4) causes/controls- 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.