An intricate body organ used for urination, sex, and you can breeding

The penis is an elaborate external body organ during the people familiar with urinate as well as sex and you may reproduction. They contains several parts, such as the shaft, direct, and you may foreskin.

This article relates to the brand new physiology and you will aim of the penis, including issues that could affect the big event or appearance of knob from the birth otherwise later in life.


The penis reaches leading of the looks from the the bottom of the newest hips. The scrotum, who has the brand new testicles, lays close to the cock.

  • Glans: The brand new glans , otherwise head of the cock, is the sensitive and painful construction at the end of the newest corpus (shaft).
  • Urethra: The newest urethra is a pipe in the manhood one works off the latest kidney into the head of manhood. It is useful urination. In addition it crosses through the prostate gland, in which a gap, called the ejaculatory duct, receives jizz and you may liquid that define semen.
  • Meatus: The latest meatus is the beginning within idea of glans through which pee or sperm exits the body.
  • Prepuce: The brand new prepuce , or foreskin, are a loose flex off facial skin that covers your head out-of the penis. Getting rid of the brand new foreskin is referred to as circumcision.
  • Corpus cavernosa: The corpus cavernosa are two columns out of spongy muscle that are running along side indoor shaft of your knob. When filled up with blood, the latest tissues stiffen, causing an erection.
  • Corpus spongiosum: This new corpus spongiosum ‘s the 3rd column out of tissues you to suppresses the urethra away from closure during the an erection.

Your penis is well-supplied by the arteries. The newest axle, which contains new urethra and you can three articles of erectile tissues, are covered with a ring from conjunctive muscle known as fascia and you may covered with epidermis. The base of the penis try supported by conjunctive architecture, called suspensory ligaments, that support the manhood close to the pelvic bones.

There is a wide type inside the penis dimensions, together with mediocre softer (“soft”) duration of a dick is step three.5 inches. The typical length of a vertical dick are six in, that have the common circumference of 5 in.


The main qualities of knob was urinary and you will intimate. This new sexual reason for the penis can be described as a few stages: hard-on and you may ejaculation.


Urination is the discharge of pee regarding the system. This happens when pee tickets on the bladder from urethra towards the meatus. The latest pee is actually pressed out of the human anatomy from the contraction of the detrusor strength on wall structure of your own kidney.

Between the manhood and bladder ‘s the external sphincter strength, that will be managed to hang when you look at the otherwise launch pee.


A hardon is the stiffening of your knob considering intimate pleasure and/otherwise bodily pleasure. It is very regular getting erection quality that occurs during sleep and up on awakening. A hardon occurs when there clearly was an increased blood circulation for the corpus cavernosa and you may corpus spongiosum.

While in the a hardon, arteries providing the erectile buildings often dilate (widen), evoking the knob so you’re able to engorge (fill) with bloodstream. The engorgement compresses the fresh new blood vessels by which blood constantly exits the fresh knob. It “traps” the new blood and assists suffer the brand new erection.


Ejaculation is the launch of semen in the looks. It’s always accompanied by a sexual response titled an orgasm.

  • Basic, a pipeline called the vas deferens deals, propelling cum about testicles on ejaculatory duct.
  • At the same time, the prostate gland and you can seminal vesicles price, adding drinks that comprise most of the amount of sperm.
  • Meanwhile, fast contraction out of muscles at the base of your own knob, titled periurethral human anatomy, push sperm from the dick.

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