How is the process of micturition altered by toilet training?

Explanation

1. The process of release of urine from the urinary bladder is called micturition. It is more than a simple reflex. The control of micturition is learnt is infancy. It induces other sensory fibres in the bladder which conveys the information on fullness of bladder.
2. This information reaches the centres in thalamus and cerebral cortex of the brain via the spine.
3. The brain can sense the need to pass urine and urgency of the situation.
4. The brain centres can control the micturition reflex by inhibiting the parasympathetic motor fibres.
5. When convenient, the brain centre removes this control and permits micturition under conscious control.
6. Further the link between spine and cerebral cortex is developed only nearing 2 years of age. Hence toilet training is not possible in infants.
7. Therefore by training children at a young age the micturition reflex can be brought under control,