Anatomy Of An Erection

Two main arteries one in each of the corpora cavernosa and several veins move blood in and out. Upon stimulation the arteries within the penis relax and blood flows into the penis at more than 20 times the normal rate.

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The veins get compressed trapping blood in your penis.

Anatomy of an erection. The key to an erection lies within the male brain through visual auditory or imagined stimuli or through manual stimulation. They have a maze of blood vessels tissue and open pockets. An erection begins with sensory and mental stimulation.

The reddish or purplish glans or glans penis head of the penis is smooth shiny moist and extremely sensitive. Anatomy of a penis. The blood enters faster than it can leave through the veins.

Reflexogenic erection is produced by tactile stimuli to the genital organs. So basic biology an erection is a hormonal response to stimuli that creates a rapid blood flow to the penis which in turns compresses the veins resulting in the erection. This chain reaction lets you achieve and maintain 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. Stage 1 filling with blood.

Here i have explained the anatomy of the human male reproductive system organs and that includes penis anatomy as well as anatomy of testicles scrotum urethra and vas deferens. During erection the ridged band forms ridges that go all the way around about halfway down the shaft. Anatomy of the erect penis.

There is a bit of mystery that surrounds the average erection. 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. Impulses from the brain and local nerves cause the muscles of the corpora cavernosa to relax allowing blood to flow in and fill the open spaces.

Psychogenic erection is a result of audiovisual stimuli or fantasy. As a result of sexual andor psychological stimulation impulses from the brain and nerves around the penis cause the smooth muscles to relax allowing blood to fill the corporal bodies. The urethra the tube that urine and semen flow through runs along the underside of them in the spongy tissue of the corpus spongiosum.

Impulses from the brain modulate the spinal erection centers t 11 l 2 and s 2 s 4 to activate the erectile process. There are five stages involved in the erection.

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