Anatomical Urinary bladder
Introduction:-
Positions: -
1. In infants: In abdomen
2. Upto 9 years of age: Partially abdomen and partially pelvic.
3. After 9 yrs of age: Fully pelvic organ
4. In adult: When bladder is full it is abdominal organ and may extent up to the umbilicus.
5. Shape: When empty - Tactrahadral shape
When full- Oval shape
Capacity:
1. Infants:22-50 ml
2. Adult: 450-500 ml
First desire for micturition
Note:
1. Pain full sensation start when the amount of urine reaches above 450 ml
External Features:-
1. Apex:- directed forward.
2. Base/fundus:- directed backward.
3.Neck:- lowest and most fixed part of bladder.
4. Surface :-
:Superior surface
:Infralateral surface (2)(R&L)
Border:-
: Anterior border
: Posterior border
: Two lateral border
Relation of ureter to the vasodifference or Posterior surface of urinary bladder
Arterial supply: -
1. Superior vesicle artery
2. Inferior vesicle artery
3. Obturator artery
4. Inferior gluteal artery
5. Uterine artery in female
*All are the branch of iliac artery.
Nerve supply:-Sympathetic nerve -(T10-L2)
Parasympathetic nerve - (S2, S3, S4)
Venous drainage:- It is form vesicle venous plexus drain in to internal iliac vein.
Lymphatic drainage:-External iliac lymphnode.
Ligaments of urinary bladder:-
1) True ligaments:-
: lateral true ligament
: lateral puboprostatic ligament
: medial puboprostatic ligament
: median umbilical ligament
: posterior ligament
2) False ligaments:-
: median umbilical fold
: medial umbilical fold
: lateral false ligament
: posterior false ligament
Applied anatomy: -
1. Full urinary bladder can be rupture by injury
2. Cystoscopy:- Examination of interior of urinary bladder
3. Cystography:- Radiography of urinary bladder
4. Suprapubic cystectomy :- to cut and open the urinary bladder through anterior abdominal wall for obstruction of urine.
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