Rectum

rectum it is the last section of , located immediately after . The rectum receives the remainder materials that are after all the process of digestion of , constituting lees. The rectum is the final part of heavy intestine and it has a length of 15 cm, and fecales lees they leave the body here through .

Structure of the rectum

The histología of the rectum is similar to the one of the colon, unless it presents/displays criptas of Lieberkuhn deeper but than they appear in smaller amount.

columns of Morgagni they are you fold longitudinal of the mucosa, that is united to each other to form the valves annals, that help the anus to give support to the excrement column.

presents/displays a transition to us, from epitelio prismatic to epitelio pluriestratificado not cornificado. Soon epitelio queratiniza. The own lamina lodges glands annals at level of the rectoanal union and circumanales glands at level of the distal end of the anal conduit. The muscular layer of the mucosa has a proptotípica constitution.

The submucosa lodges plexo venous internal and external hemorroidario.

sphincter internal anal corresponds to a thickening of the internal circular layer of the muscular layer, reason why it is conformed by smooth. The external anal sphincter is formed by muscles of the ground of pelvis, and corresponds to voluntary skeletal muscle.

of the rectum

The rectum is one of the most important organs in defecación human. The rectal blister serves like temporary storage of lees, because the rectal walls are distienden when the excrements of their interior are accumulated. receivers of streching of vegetative nervous system located in the rectal walls, they stimulate desire defecatorio. If the defecación is not culminated, the reflection stays out defecatorio, and the lees continue being accumulated and continues the water absorption by the rectum, which causes a hardening of lees and constipation.

When the rectum is full, intrarectal pressure it pushes the walls of the anal channel, the rectum is used excessive respect and peristálticas waves they drive lees towards the anus. The sphincters internal and external are opened by muscles of the pelvic ground, allowing the exit of the excrements to the outside.

Procedures rectal doctors

• Rectal tact: It is part of physical exploration medical, for of certain like rectum cancer.
• Endorectal medication: It is the medicine insertion in form of supositorios or enemas in the rectum.
• Electroeyaculación: It is an artificial form to cause for the treatment of aneyaculación.
• Rectal temperature: She is more precise and near of the interior of the body, superior to the one of the corporal surface like in armpits. Its measurement is not recommended with of , due to the risk of breakage and poisoning by mercury. One is due to make with digital thermometers that dispondan of a aplicador sufficiently extended for their rectal introduction.
• Rectoscopia or proptoscopia: It is the introduction of endoscopio by the anus, to visualize the interior of the rectum.

Rectum and stimuli sexual

Due to the proximity of the previous wall of the rectum with in the women or to in the men, and to the nerves shared between urogenital apparatus and the digestive apparatus, the rectal stimulus can as much originate a sexual desire in women as in men. Between sexual behaviors humans, caresses annals or anal penetration it can comprise of sexual games as much in relations homosexuals like heterosexuals.