Erection Anatomy

The urethra the tube that urine and semen flow through runs along the underside of them in the spongy tissue of the corpus spongiosum. Unlike the corpus cavernosum this portion of the anatomy of the penis also works to keep the urethra open during an erection.

Anatomy And Physiology Of Erection Ejaculation And Orgasm

This spongy tissue inside of the shaft also helps to produce an erect penis.

Erection anatomy. The erectile tissues fill with blood during sexual arousal producing an erection. When the blood vessels of the corpora cavernosa relax and open up blood rushes in through the cavernosus arteries to fill them. There is a lot of variation in penis size although size has nothing to do with how well a penis is working or how much pleasure someone with that penis can give or receive.

There are several different parts to the penis each of which has some impact on feeling sexual arousal and pleasure. An erection begins with sensory and mental stimulation. The primary physiological mechanism that brings about erection is the autonomic dilation of arteries supplying blood to the penis which allows more blood to fill the three spongy erectile tissue chambers in the penis causing it to lengthen and stiffen.

The reddish or purplish glans or glans penis head of the penis is smooth shiny moist and extremely sensitive. Anatomy of a penis. Another functioning part of the anatomy of the penis is called corpus spongiosum.

Anatomy of the erect penis. They have a maze of blood vessels tissue and open pockets. How does an erection occur.

During erection the ridged band forms ridges that go all the way around about halfway down the shaft. Penis anatomy pictures images and stock photos browse 594 penis anatomy stock photos and images available or start a new search to explore more stock photos and images. The now engorged erectile tissue presses against and constricts the veins that carry blood away from the penis.

The human penis is anatomically divided into two continuous areasthe body or external portion and the root. Two main arteries one in each of the corpora cavernosa and several veins move blood in and out. The root of the penis begins directly below the bulbourethral glands with a long cylindrical body of tissue known as the corpus spongiosum or corpus cavernosum urethrae.

The root and body of the penis are spanned by three masses of erectile tissue. The blood then gets trapped under high pressure creating an erection. During sexual arousal nerve messages begin to stimulate the penis.

The corpus spongiosum in the middle of the penis houses the urethra the opening at the end of the penis through which a man urinates and ejaculates. There is also a network of tissues muscles arteries and veins running through the penis which allows it to fill with blood and stiffen for an erection. The root and body of the penis are spanned by three masses of erectile tissue.

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