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Cranial nerves 11 and 12    Assessment of both nerves is shown in the image above.                                                                                                Cranial nerve 11 is the spinal accessory and is responsible for head turning and moving the shoulders up and down. Surgical procedures to the head and neck, as well as trauma , may cause damage to this nerve. This could make movement difficult. Cranial nerve 12 is the hypoglossal and is responsible for tongue movement. Damage to this nerve may be caused by a stroke or trauma. Any injury, may  cause the tongue to deviate to the weak side. Enjoy topics for the Layperson Quiz questions 1)  Which is the eleventh cranial nerve? 2) Which is the twelfth crania...

Cranial nerves 8, 9 and 10 Assessment of these nerves is shown in the image above.   Cranial nerve 8 is the acoustic nerve and is responsible for hearing and balance.  An acoustic neuroma may affect hearing and balance.                                         Cranial 9 is the glossopharyngeal and is responsible for swallowing.                                    Cranial nerve 10 is the vagus nerve and is responsible for gagging and          swallowing.   Cranial nerves 9 and 10 are checked together. Following          a brain injury like a stroke, gagging and swallowing may be affected.             Spine at work   QUIZ QUESTIONS 1) What is the eighth cranial nerve? 2) Which cranial nerve...

What TBI mean ? This means Traumatic Brain Injury.  In  the image below, a surfer hits his head on the pier. He sustains a TBI and a Subarachnoid hemorrhage. He was admitted to the ICU for treatment. An EVD was placed by the doctor. Please click on the links for more helpful information:                                                      Medical abbreviations - Part 2                                                         ICP for the layperson In the above image, examples of how brain injuries can occur are shown. Click on the links: ICP monitoring Stroke and ICP for more information.

  Cranial nerves 3, 4 and 6 are responsible for extraocular eye movements. All three pairs of nerves work together to create smooth movement of the muscles. they are generally checked together. Learn more: Can a stroke be prevented? The largest of the cranial nerves, is the Trigeminal.                  This nerve contains three branches:                 Opthalmic ( corneal blink reflex).                             Maxillary - which supplies the upper jaw                    Mandibular - controls the lower jaw. Cranial nerve 7 - is the facial nerve , this is checked with the trigeminal nerve. Learning for the layperson   Quiz questions 1) Which cranial nerves are responsible for extraocular eye movements? 2) Which is the largest of the cranial nerves? 3) Which cranial ...

The cranial nerves The cranial nerves originate in the brain. Each brain has 12 pairs of cranial nerves.They are part of the peripheral nervous system (PNS).     Cranial nerve 1 is the Olfactory ( smell). Cranial nerve 2 is the Optic ( vision). Learning for the layperson Quiz questions 1) How many cranial nerves are there? 2) Which cranial nerve is responsible for vision? 3) Which cranial nerve is responsible for smell?