Bubble

Shape and size of the bubble depend strongly on their charge state.
The urinary bladder (vesica urinaria) is a hollow organ that is surrounded by a layer of smooth muscle. The bladder lies in front of the pelvis behind the pubic symphysis (pubic symphysis) and the pubic bones. The upper area of ​​the bladder is covered by the peritoneum. Behind, towards the back part of the bladder located adjacent to the uterus and vagina in women and in men in the rectum. The bladder collects the supplied thereto through the two ureters and urine provides for its elimination. Shape and size are strongly dependent on their charge state. The bladder is located in the bony pelvis behind the pubic bone. When the bladder is empty, it lies close to the pubic bone.


The bladder consists of bladder body, bladder base and bladder neck.
Anatomically we distinguish three components of the bladder:

    Bladder body: it tapers upward into the bladder apex.
    The sweeping rearward portion of the bladder is called the base of the bladder. Lead him into the back side of the two ureters.
    Extends down to the front end of the bladder neck, which passes into the urethra.


The bladder epithelium is highly extensible.
The bladder is held in place by several ligaments in the pelvis. It is, especially in the bladder body, very stretchy. In order for this expansion can be done without painful tears in the bladder mucosa, it is (as well as the ureters) in the interior of one. Transitional epithelium lined. It consists of several cell layers that raise many folds and is very extensible as needed. Only the area that lies between the junction of the ureter and the beginning of the urethra is completely smooth. This area is also called bladder triangle.


The bladder can hold up to 800 ml of urine.
The normal bladder capacity is a maximum of 800 ml ml Already a filling 300-350 uses a strong urge to urinate. However, in some reference books 150 to 250 ml given as values ​​for a starting urination. In total there are large individual differences in urinary urgency, which depend firstly on the other hand, habituation and of possible pathological processes such as urinary incontinence, reflex bladder, irritable bladder, etc.