The penile erection.
D002318:Cardiovascular Diseases / Q000150:complications; D002540:Cerebral Cortex / Q000502:physiology; D048909:Diabetes Complications; D004700:Endocrine System Diseases / Q000150:complications; D007172:Erectile Dysfunction / Q000209:etiology; D006801:Humans; D008297:Male; D010413:Penis / Q000502:physiology*; D011584:Psychology; D012018:Reflex; D013118:Spinal Cord Diseases / Q000150:complications; D013514:Surgical Procedures, Operative / Q000009:adverse effects