Organic structure of your Penis
This section helps us in understanding what we are dealing with.
In order to understand which enlargement process is desirable, it is helpful to know the structure of penis, how it works and how the enlargement methods are functioning on your penis.

As it can be seen in the diagram above, there are two main chambers to the penis present, the corpora cavernosa. During arousal, these chambers are filled with blood, and so the tissues expand.
When these chambers expand it puts certain pressure on the tunica albuginea and the blood gets trapped in the corpora cavernosa, as a result, the penis becomes erect.
The corpus spongiosum is filled with blood in lesser extent as compared to corpora cavernosa. This prevents the fragile tissues of the urethra, and there is ejaculation.
The important factor that determines the size of an erect penis is the capacity of the corpora cavernosa. The penis will become large only when the chambers allows, the erection depends on its size when it fully expands.
Most of penis enlargement methods aim at increasing the capacity of these chambers, by allowing more blood into the penis during erection as compared to other methods other than surgical process.
The Crown or Corona : The corona is a ridge of flesh that separates the head of the penis and joining of the shaft.
Corpa Cavernosa : These are two spongy bodies that are present in the erectile tissue on both side of the penis which become enlarged when blood from arteries flows into the penis, thus leading to erection.
Corpus Spongiosum : It is a spongy tissue that surrounds urethra. This tissue expands to protect the urethra when it is filled with blood, but to a lesser extent as compared to corpora cavernosa.
Cowper's Glands: Prior to orgasm a very small amount of fluid comes out of this cowper's glands. This fluid helps in neutralizing the acidity inside the urethra.
Dorsal Side : The above part of the penis is called dorsal side.
Ejaculatory Glands : The duct through the seminal glands through which semen passes during the process of ejaculation.
Epididymis : The process of epididymis is a 'holding of pen’ where sperm is produced by the seminiferous tubules mature. The sperm wait till ejaculation or nocturnal emission happens
Foreskin, Prepuce It is a roll of skin which hides the head of the penis in case of uncircumcised men.
Frenulum, Frenum : It is a thin strip of flesh on the lowerside of the penis that connects the shaft to its head.
Glans : The glans is seen in the illustration as the head of the penis. The glans in uncircumcised men is usually hidden by the prepuce. This glans is highly sensitive, as is the corona, the ridge of flesh that joins the glans to the penis shaft
Head: The bulbous tip that is present in the penis is also known as glans.
Meatus : The hole present at the tip of the penis that allows both the passage of urine and semen.
Perineum : The area present between both the scrotum and anus.
Prostate Gland : It produces a fluid that helps in formation of semen. The prostate gland also helps in squeezing the urethral duct to the bladder, which prevents urine from mixing with the semen and thus disturbing the pH balance required for development of sperm.
Pubococcygeus Muscle :
It is also known as the PC or pelvic floor muscle, which is necessary to control urination and ejaculation.
Raphe : The ridge is seen running from the meatus to the perineum across the scrotum that is formed during the development of fetus and gender assignation.
Scrotum Is A Sac : The sac that hangs behind and below the penis is scrotum, and contains the testes, which are the male sexual glands. The primary function of scrotum is to maintain the testes at approximately 34 C, at this temperature the testes most effectively produce sperm.
Semen : The Fluid produced during the ejaculation is made up of 2-5% sperm. The main component of semen is seminal plasma, with large concentrations of Zinc, and amines that protect the sperm from the acidic environment present in the vagina.
Seminal Vesicles : A fluid that activates and protects the sperm after it has left the penis during ejaculation is produced by the seminal vesicles
Shaft : The main portion of the penis consists of the corpora cavernosa, corpus spongisum, urethra, cavernosal artery and dorsal vein and artery.
Smegma This a substance with the texture of cheese made up from oils secreted from glands present on both side of the frenulum, that combined with skin cells, and moisture. This mostly occurs in case of uncircumcised men.
Testes, testicles : The male sexual glands, the two testes within the scrotum produce sperm and testosterone. Within each of the testis there is a kilometer of ducts called the seminiferous tubules; this is the organs that produce sperm. Each testicle produces nearly about 150 million sperm in 24 hours.
Urethra : The passage of the penis that carries urine from the bladder and semen from the testes to the end of the penis.
Vas Deferens : The ducts which leads from the epididymis to the seminal vesicles. These are the glands that are dissected during the procedure known as vasectomy.
Ventral Side : The Lower side of the penis.
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