Penis Anatomy
The penis of the human male is made up of three separate “cylinders” of tissue. Two paired cylinders on top are called the Corpora Cavernosa, and they are responsible for most of a man's erection. The tissue is much like a sponge that expands to fill with blood to the
point of turgidity, creating the hardness of the erection. The Corpora Cavernosa are surrounded by a membrane, called the Tunica Albuginea, which also contributes to erections by helping to hold blood in the penis.
The capacity of the Corpora Cavernosa to fill with blood during arousal limits erection length and thickness, and this function can
decrease with age.
The third cylinder of the penis, located in a groove underneath and between the two larger cylinders, is called the Corpus Spongiosum, through which semen and urine are passed out of the body. Also housed within it are nerves, two main arteries, and several veins. The Corpus Spongiosum also forms the head (or glans) of the penis.
It has recently been discovered that the penile tissue of the Corpora Cavernosa responds strongly to several herbal compounds.
Because this tissue is highly vascular (contains a high density of veins and arteries) these ancient cures for vascular and circulatory
health are seeing a re-emergence in Western medicine as treatments for erection problems. Many men have experienced tremendous
results using VigRX, which contains a number of the most potent herbs available for this purpose.
The chambers of the Corpora can adapt to greater capacity and more effective function, so long as they receive the right
supplementation and stimulation.
Physiology of an erection
An erection is the result of a combination of both physical and mental stimulation. It begins with nervous responses between the brain
and the muscles. Various neurotransmitters in the brain (including acetylcholine, epinephrine, and nitric oxide) create nerve impulses that then trigger the muscles in the penis that control blood flow into the Corpora Cavernosa. These muscles relax, allowing large amounts of blood to flow into the penis. The spaces in the tissue can then fill with blood.
Arousal (both physical and mental) also causes nerve activity that tells the vascular system to increase blood flow to the penis. The two
main arteries in the penis pump in more blood, creating pressure that inflates it to form an erection.
As the penis needs to retain the blood to remain erect, each body of erectile tissue is surrounded by an elastic membrane – the tunicae – which hold the blood from leaving the penis. This is what allows the penis to become inflated.
After stimulation is over or following ejaculation, these reactions reversed. The pressure in the penis is reduced as the tunicae loosen
and the smooth muscle in the blood vessels contract. This stops the inflow of blood, and opens the veins for the blood to flow back out.
The penis then contracts back to its flaccid size.
Much of what controls an erection is triggered by chemical signals, both hormones and neurotransmitters, which are improved by the
natural ingredients of products like VigRX – a safer (and less expensive) alternative to hard pharmaceutical products.
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