Penis

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10150

The penis is the & rsquo; organ of copulation and urination in the & rsquo; man. It is attached to the pubic symphysis, pending before the stock exchanges in & rsquo; state of rest. It consists of the erectile formations surrounded d & rsquo; a common skin envelope, the sheath of the penis.

DIMENSIONS : On average (+++), according & rsquo; flaccid or & rsquo; erection,

  • Resting, has a length of 10 at 12 cm and the circumference of 8 at 9 cm.
  • Erect, the pass length 16 at 18 cm and its circumference went 12 cm.

1) Erectile BODIES :

2 cavernosa and 1 spongy body formed by areolar tissue which, When & rsquo; it fills with blood, causes the & rsquo; erection.

2 cavernosa :

  • lateral, peers and symmetrical
  • slicked back against the branches ischio,
  • covered by the erector muscles that attach the,
  • d & rsquo; first separated in origin, they join to form a ventral gutter where the spongy body is housed

1 spongy body :

  • median
  • having at its rear portion a bulged portion clavate, the bulb
  • surrounded by its original muscle strap muscle bulbo- spongy
  • sheathing and the & rsquo; anterior urethra
  • ending forming the glans


  • The acorn is separated from the body of the penis by a groove, the coronal sulcus or balanopreputial which forms, all around the glans, a gutter interrupted at the middle portion of the lower face by a fold of skin, the brake. The coronal sulcus contains sebaceous glands whose secretion is smegma can s & rsquo; accumulate in the groove balanopreputial (lack of & rsquo; hygiene, premarital adhesions). The envelopes of the penis form a cylindrical fold around the glans, the foreskin, which has sleeve around the glans (c & rsquo; is to foreskin is cut entirely at d & rsquo; a circumcision.
dorsal view

2) THE ENVELOPE OF THE PENIS :

  • a dense tunica albuginea surrounding each of erectile bodies
  • the penis fascia that surrounds a large cell space which explains the possibilities of “slip” sheath on erectile formations.
  • dartos
  • skin or sheath of the penis.

3) VASCULARISATION :

1- arteries :

  • deep, All provenant of & rsquo; Femoral Pudendal (shameful) internal, branch of & rsquo; internal iliac giving the cavernous arteries, l & rsquo; Femoral bulb-urethral, dorsal penile arteries.
  • superficial, provenant of & rsquo; Femoral Pudendal (shameful) external, branch of the femoral artery, for the sheath of the penis

2- veins :

  • the deep dorsal vein of the penis, drains erection training, then flow into pre plexus and bladder side finally in the iliac veins
  • the superficial dorsal vein of the penis, for the sheath, will drain into the great saphenous vein.

3- lymphatic :

Inguinal nodes and external iliac

4- nerves :

  • from the sympathetic system, c & rsquo; ie hypogastric plexus, essentially accompanies & rsquo; cavernous artery. C & rsquo; is them that make possible the & rsquo; erection.
  • the central nervous system : these are internal pudendal nerve branches, from the sacral plexus

4) MALFORMATIONS :

  • Hypospadias

– prior (balanique or coronal)
– way
– posterior (vulviforme) +++ (sexual ambiguity)

  • Epispadias
  • Phimosis : plasty or circumcision
  • Adhesions balano-foreskin: smegma
  • Shortness of brake rod : painful ulcerative and rupture during the first intercourse.
Side view

Course of Dr Dous Said – Faculty of Constantine