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What is the stimulus of urination?

Updated: 8/9/2023
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12y ago

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When the volume of urine reaches approximately 300 mL in adult,stretch receptors in the bladder wall transmit impulses to the central nervous system.That indidual then has a conscious desire to micturate.

the afferent impulses enter the second,third,and fourth sacral segments of the spinal cord.Efferent impulses leave the cord from the same segments and pass via the parasympathetic preganglionic nerve fibers in the hypogastric plexuses to the bladder wall,where they synapse with postganglionic neurons.

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12y ago
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15y ago

I am not aware of any brains that urinate.

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11y ago

bladder receptors that are stimulated when urine stretches the bladder

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11y ago

brain stem

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Q: What is the stimulus of urination?
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