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Trigger Zone

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trigger zone
n.
A specific area that, when stimulated by touch, pain, or pressure, excites an attack of neurologic pain.

Trigger Zone
A circumscribed region near a nerve, often in the head & neck which, when stimulated, even with light touch, may elicit marked neuralgia accompanied by lightning pain
Examples Lips and buccal cavity—evoking trigeminal neuralgia and tic douloureux—tonsillar or posterior pharynx—glossopharyngeal neuralgia—and muscles involved in myofascial pain syndrome

trigger zone
the initial segment of a neuron; the first segment of the axon after it leaves the cell body.

trigger zone
Neurology A circumscribed region near a nerve, often in the head & neck which, when stimulated, even with light touch, may elicit marked neuralgia accompanied by lightning pain Examples Lips and buccal cavity–evoking trigeminal neuralgia and tic douloureux, tonsillar or posterior pharynx–glossopharyngeal neuralgia and muscles involved in myofascial pain syndrome


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Vomiting occurs when the drug stimulates a certain part of the brain called the chemoreceptor trigger zone - this then sends a message to the vomiting area of the brain.
Determine whether the potential causative factor is acting on: (2,5,7,8) * vomiting centre (VC) * chemoreceptor trigger zone (CTZ) * via vagal stimulation * via vestibular apparatus * via cerebral cortex, e.
1) The facts that stimulation of the area postrema produces vomiting in cats and that it is not protected by the blood-brain barrier suggest that the area postrema contains the chemoreceptor trigger zone for the production of vomiting in response to noxious chemicals.
 
 
 
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