Read emptying

The micturition is triggered at random and then runs reflex.
The emptying of the bladder, which is called in technical language micturition is triggered randomly. The fullness of the bladder is perceived through pressure receptors in the bladder wall. If the pressure within the bladder, will trigger the so-called urinary urgency. The feeling of having to go to the bathroom, we can willingly allow, or oppress. But once the process of urination set in motion, it is largely in the form of reflexes.

  The bladder is innervated by nerves of the autonomic nervous system. The autonomic or involuntary nervous system is formed by the strands of the sympathetic and the parasympathetic nervous system. The sympathetic nervous system causes the bladder is flaccid and can fill up. If the internal pressure of a certain threshold, then activate the stretch receptors of the parasympathetic nervous system. Which ensures that the muscles of the bladder wall to contract. This increases the pressure inside the bubble even further. In the area of the triangle formed bubble now a small groove that runs between the junction of the ureter and urethra. Thus the inclusion of a first small portion of urine into the urethra is facilitated. Then stretch the urethra. This strain causes the internal sphincter relaxes and the urine can flow out.


The threshold can be changed by training.
The threshold that triggers the urge to urinate is very different. It can be modified by a specific training. Nor does the voluntary voiding can be trained. This Toilet Training is an essential component of therapy for many types of urinary incontinence.