Micturition reflex is the neurological pathways involved in urination.
When your bladder fills, the detrusor muscles expand and proprioceptors within the walls of the muscle activate. It sends signals (afferent nerves) that go to your medulla and also to the parasympathetic system in the sacral spinal cord. The signal to the parasympathetic system elicits the response to urinate by relaxing the inner external sphincter and constricting the detrusor muscles. However, first your upper brain is consulted and decides whether it is appropriate to go or not.
If your brain allows, it will elicit the response by inhibiting the sympathetic nervous system and inhibiting the somatic nervous system. The somatic nervous system controls the external sphincter and by inhibiting it, you are relaxing it. The external sphincter is much more powerful than the internal sphincter.
If your brain says no, it will activate the sympathetic nervous system (which relaxes the muscle walls and constricts inner sphincter) and your somatic control continues to constrict the external sphincter.
It feels like you have to urinate. If the micturition reflex is blocked, you don't have to go.
Urination erection?
stretch receptors
The parasympathetic nervous system allows the act of micturition. The sympathetic nervous system inhibits it.
It is localted in the Sacral plexus
sacral segments of the spinal cord
An efferent somatic (pudendal nerve) output to the external sphincter which relaxes the external sphincter and causes the urine to flow through the urethra is the effector part of the reflex arc.
Yes, micturition is another word for urination.
I believe it is called "micturition". -JS yes it is micturition..... double checked in medical dictionary thanks -JS from mzippa
Urinating, which is contracting the urinary bladder.
Micturition
Micturation is urination.