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Micturition - Anatomy & Physiology (view source)
Revision as of 16:41, 18 August 2008
, 16:41, 18 August 2008→Innervation Involved in the Reflex
* The general aim for the '''sympathetic and somatic systems''' is to '''retain urine'''
* The general aim for the '''sympathetic and somatic systems''' is to '''retain urine'''
* The general aim for the '''parasympathetic system''' is to '''void urine'''
* The general aim for the '''parasympathetic system''' is to '''void urine'''
===Parasympathetic Supply - Bladder Detrusor Muscle===
===Parasympathetic Supply - Bladder Detrusor Muscle===
* Excitatory action
* Excitatory action
* Function - retain urine through increased urethral tone
* Function - retain urine through increased urethral tone
===Somatic Motor Supply - External Urethral Sphincter===
* S1-S2
* Pudendal Nerve
* No synapse
* Innervates the urethral skeletal muscle - external urethral sphincter
* Function is to retain urine
===Central Connections===
===Central Connections===
There is aspects of control by the Pons and the Cerebral Cortex with possible influences from the cerebellum.
There is aspects of control by the Pons and the Cerebral Cortex with possible influences from the cerebellum.