The diagrams belows illustrate the corpora cavernosa chambers which will be expanded with the use of natural enlargement programs and other methods of penis enlargement.

The human penis is made up of three columns of erectile tissue:

• the two corpora cavernosa (singular: corpus cavernosum) and
• one corpus spongiosum

The corpus spongiosum lies on the underside (known also as the ventral side) of the penis; the two corpora cavernosa lie next to each other on the upper side (dorsal side).

The end of the corpus spongiosum is enlarged and bulbous-shaped and forms the glans penis. The glans supports the foreskin or prepuce, a loose fold of skin that in adults can retract to expose the glans. The area on the underside of the penis, where the foreskin is attached, is called the frenum (or frenulum).

The urethra, which is the last part of the urinary tract, traverses the corpus spongiosum and its opening, known as the meatus, lies on the tip of the glans penis. It is both a passage for urine and for the ejaculation of semen. Sperm is produced in the testes and stored in the attached epididymis. During ejaculation, sperm are propelled up the vas deferens, two ducts that pass over and behind the bladder. Fluids are added by the seminal vesicles and the vas deferens turns into the ejaculatory ducts which join the urethra inside the prostate gland. The prostate as well as the bulbourethral glands add further secretions, and the semen is expelled through the penis.

The raphe is the visible ridge between the lateral halves of the penis, found on the ventral or underside of the penis, running from the meatus (opening of the urethra) across the scrotum to the perineum (area between scrotum and anus).

The human penis differs from those of some other mammals. It has no baculum, or erectile bone; instead it relies entirely on engorgement with blood to reach its erect state. It cannot be withdrawn into the groin, and is larger than average in the animal kingdom in proportion to body mass.

Glossary

corona: The 'crown,' a ridge of flesh demarcating where the head of the penis and the shaft join.

corpa cavernosa: The corpora cavernosa are the two spongy bodies oferectile tissue on either side of the penis which become engorged with blood from arteries in the penis, thus causing erection.

cowper's glands: The Cowper's glands secrete a small amount ofpre-ejaculate fluid prior to orgasm. This fluid neutralizes the acidity within the urethra itself.

ejaculatory ducts: The path through the seminal glands which semen travels during ejaculation.

epididymis: The epididymis is a 'holding pen' where sperm produced by the seminiferous tubules mature. The sperm wait here until ejaculation or nocturnal emission.

foreskin, prepuce: A roll of skin which covers the head of the penis in uncircumsized men.

frenulum, frenum: A thin strip of flesh on the underside of the penis that connects the shaft to the head.

glans: The glans is clearly visible in illustration (A) as the head of the penis. The glans in uncircumcised men is usually covered by the prepuce. The glans is highly sensitive, as is the corona, the ridge of flesh that connects the glans to the shaft of the penis.

prostate gland: Also produces a fluid that makes up the semen. The prostate gland also squeezes shut the urethral duct to the bladder, thus preventing urine from mixing with the semen and disturbing the pH balance required by sperm.

scrotum: The scrotum is a sac that hangs behind and below the penis, and contains the testes, the male sexual glands. The scrotum's primary function is to maintain the testes at approximately 34 C, the temperature at which the testes most effectively produce sperm.

seminal vesicles: The seminal vesicles produce semen, a fluid that activates and protects the sperm after it has left the penis during ejaculation

smemga: A substance with the texture of cheese secreted by glands on each side of the frenulum in uncircumsized men.

testes, testicles: The male sexual glands, the two testes within the scrotum produce sperm and testosterone. Within each testis is a kilometer of ducts called the seminiferous tubules, the organs which generate sperm. Each testicle produces nearly 150 million sperm every 24 hours.

urethra, meatus: The opening at the tip of the penis to allow the passage of both urine and semen. vas deferens: The ducts leading from the epididymis to the seminal vesicles. These are the ducts that are cut during the procedure known as vasectomy.

Synonyms and Slang Words for the Penis

• boner (Refers to erection)
• choad (penis with greater girth than length)
• cock
• Crotch Pickle
• dick
• ding-a-ling
• ding-dong
• dinkle
• dong
• dork
• endowment
• fascinum
• flander doodle
• gherkin
• hammer
• hose (fire, etc)
• knob
• lad
• main vein
• manhood
• meat puppet
• organ
• pecker
• peener
• pickle
• piny tenis ( = tiny penis)
• pocket rocket
• pole (pink, purple, sex, etc)
• Pork Sword
• prick
• pud
• sausage
• shaft
• shlong
• stiffy (Refers to erection)
• skin flute
• tallywhacker
• thing
• todger (also tadger)
• trouser snake
• wang
• willie

Information and pictures on this page provided by Wikipedia and by Penis Health, a website with a wealth of information about natural penis enhancement.