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urinary bladder ureter Anderson Anderson Arango

THE BLADDER The bladder is a hollow organ with thick muscular walls and distensible. Its main function is to re contain the urine and then eject. When empty is located in the pelvis beneath the peritoneum resting on the floor of the pelvis, posterior to the pubic bones which are separated by the space occupied by adipose tissue retropubic extraperitoneal bladder which moves freely, exception of the neck, which is strongly restrained by ligaments (puboprostatic pubovesical in men and in women). As
the bladder is filled ascends the extraperitoneal tissue in the pelvis minor, could even reach the navel.
When empty it is tetrahedral characterized by:
· Vertex: front end, pointing to the symphysis pubis
· Body: portion located between the top and bottom
· ; base or bottom: posterior wall, convex
· Neck: formed by the meeting of the fund and the inferolateral surfaces.
· Uvula: light projection of the bladder trigone.

The bladder bed is configured as follows:
· Laterally: pubic bone, internal obturator muscle and levator ani
· Back side: straight vajina the man or the woman.

bladder irrigation is mainly irrigated by the internal iliac artery.
· superior vesical artery, anterior portion of inferior vesical artery
·: Background and neck
· Vaginal arteries: posterior portion (the women)
· obturator artery inferior gluteal artery
·

VENOUS DRAINAGE

Levan veins the same names as the arteries and are tributaries of internal iliac veins, to bequeath to them through the veins of the lower bladder
vesical venous plexus which joins the venous plexus surrounding the prostate and bladder background, prostate, seminiferous vesicles, vas deferens, the lower portion the ureters, in addition to the women surrounding the pelvic portion of the urethra and the bladder neck and receives blood from the dorsal vein of clitoris. They reach
C
external iliac lymph nodes draining the upper and bottom drainage reaches the internal iliac nodes. INNERVATION



parasympathetic fibers come through pelvic esplagnicos. Sympathetic fibers from T11 to L2. The union of these fibers form the vesical nerve plexus which continues as the inferior hypogastric plexus. Sensory fibers reach the parasympathetic fibers, which transmit the pain of the upper accompany sympathetic fibers.