Anterior: at or towards the front of the body. Compare to posterior, dorsal.
Arteriole: a small branch off an artery. See blood vessel.
Autonomic: a nerve that operates automatically.
Corpus cavernosum: spongey tissue that fills with blood, to produce erections.
Corpus spongiosum: similar to the corpus cavernosum.
Cremasteric: pertains to a small muscle attached to the testicle.
Deferential: pertains to a duct that connects the epididymis, that transports sperm.
Diaphragm: a separating structure. In this case, part of the pelvic floor.
Dorsal: at or near the back or upper part. Compare to anterior, posterior.
Inferior: in this case, situated below. Compare to superior.
Median: in this case, situated in the middle.
Nerve plexus: a network of nerves.
Perineal: pertaining to the perineum, the space between scrotum and anus.
Posterior: at or towards the back of the body.
Prostatic: pertaining to the prostate gland.
Scrotal: pertaining to the scrotum, which holds the testicles.
Spermatic: pertaining to sperm.
Subcutaneous: usually means below the skin.
Superior: in this case, situated above. Compare to inferior.
Testicular: pertaining to the testicle.
Urogenital pertaining to the urinary and genital organs and/or their functions.
Venule: small branch off a vein. See blood vessel.
Venous plexus: a network of veins or venules.
Vesical: pertaining to the bladder.