Cranial Nerve Exam: Normal Exam: Cranial Nerve 12 - Motor
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The 12th CN is tested by having the patient stick out their tongue and move it side to side. Further strength testing can be done by having the patient push the tongue against a tongue blade. Inspect the tongue for atrophy and fasciculations. If there is unilateral weakness, the protruded tongue will deviate towards the weak side. By having the patient say lah-pah-kah, the examiner is testing the motor components of CN 12, 7, and 9 & 10.
From the NeuroLogic Exam: An Anatomical Approach collection of the Health Education Assets Library (HEAL) http://www.healcentral.org.
Copyright The University of Utah 2001; Updated Jan 2004; Updated June 2004; Updated July 2005.
The videos are licensed under a Creative Commons Attribution-NonCommerical-ShareAlike 2.5 License (http://creativecommons.org/licenses/by-nc-nd/2.5/).The 12th CN is tested by having the patient stick out their tongue and move it side to side. Further strength testing can be done by having ...all »The 12th CN is tested by having the patient stick out their tongue and move it side to side. Further strength testing can be done by having the patient push the tongue against a tongue blade. Inspect the tongue for atrophy and fasciculations. If there is unilateral weakness, the protruded tongue will deviate towards the weak side. By having the patient say lah-pah-kah, the examiner is testing the motor components of CN 12, 7, and 9 & 10.
From the NeuroLogic Exam: An Anatomical Approach collection of the Health Education Assets Library (HEAL) http://www.healcentral.org.
Copyright The University of Utah 2001; Updated Jan 2004; Updated June 2004; Updated July 2005.
The videos are licensed under a Creative Commons Attribution-NonCommerical-ShareAlike 2.5 License (http://creativecommons.org/licenses/by-nc-nd/2.5/).«
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