[physiological response of penile erectile tissue engorging with blood due to male sexual arousal. ( CSP )] (UMLS (NCI) C0030847) =Organ or Tissue Function =Genital System, Male, Penis; Sex Behavior
[inability to perform sexual intercourse. ( CSP )] (UMLS (CSP) C0242350) =Disease or Syndrome ; =DISORDER OF PENIS NOS; PSYCHOSEXUAL DIS NOS; sex behavior disorder; Sex Disorders =Impotence, Vasculogenic