Here are definitions of medical terms related to impotence.
Alprostadil: A chemical applied to the penis by gel, urethral suppository, or injection, which increases the flow of blood to the penis and produces erection.
Aphrodisiac: A substance that arouses sexual desire.
Corpus Cavernosum: The two erectile bodies inside the penis; they are spongy tissue made up of smooth muscle and blood vessels.
Digital Rectal Examination: An exam in which a doctor puts a gloved finger inside the rectum to check a man's prostate gland.
Ejaculation: The release of semen from the penis; also commonly called orgasm or climax.
Erectile dysfunction (impotence): The inability to get an erection that is hard enough for a man to have intercourse or the inability to keep an erection long enough to ejaculate inside the vagina.
Testosterone: The male hormone, secreted by the testicles, that controls the function of the penis and a man's sex drive.
Uprima: The brand name of a drug called apomorphine, which stimulates centers in the brain to enhance and facilitate erection.
Urethra: The passage that runs from the bladder through the penis, through which urine and semen are passed from the body.
Viagra: The brand name of a drug called sildenafil, which increases blood flow in the penis and creates an erection.