The penis consists of three cylinders encased in a sheath known as the bucks fascia. These three cylinders are the corpus spongiosum and two corpora cavernosa generally known as the corpus cavernosum of penis.
The corpus cavernosum accommodates spongy erectile tissue. Cavernosal arteries run alongside the center of every corpus cavernosa. The perform of the corpus cavernosum is to facilitate penile erections.
Muscular tissues encompass the cavernosum and spongiosum. These muscle mass help the penis when erect and contract throughout ejaculation.
To attain erection the mind sends impulses to the nerves within the penis and these trigger the a number of muscle mass across the corpus cavernosum penis to chill out. This enables blood to movement in to the open areas contained in the corpora cavernosa. This blood creates stress making the penis develop, which then compresses the veins that usually permit blood to empty. As soon as the blood is trapped, a muscle situated within the corpora cavernosa helps to maintain the erection.
An erection is reversed as soon as the muscle mass within the penis contract stopping blood movement in to the corpora cavernosa.