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Nerves of scalp
Are there autonomic, sensory, and motor nerves on the top of your head outside of the brain.....when the cranial nerves exit the brain through the temporal bone do they extend to the top of the scalp and if you injure nerves of your temple and top of head can it causes twitching dizziness and high blood pressure?
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Hi there. Nerves in the scalp include sensory and motor nerves innervating the scalp. The following nerves innervate the scalp like supratrochlear and supraorbital from trigeminal, greater occipital nerve, lesser occipital nerve, zygomaticotemporal and auriculotemporal nerve of trigeminal nerve supply the sensory and motor innervations to the scalp. There are 12 pairs of nerves that make up cranial nerves. They all come out of the lower side of brain and exit through various holes in the skull. Some are motor nerves, others are sensory. Some are linked to muscles in the face and neck, while others go to organs like the heart and lungs. This is not the cause of twitching and dizziness. There are certain causes responsible for muscle twitching like diet deficiency, drug overdose, and side effects of diuretics, corticosteroids, estrogens, exercise, benign twitches, and nervous system conditions like amyotrophic lateral sclerosis or ALS, muscle dystrophy, spinal muscular atrophy and myopathy. Your neurologist needs to look into these conditions one by one. The other possible cause could be multiple sclerosis and is a diagnosis of exclusion. The symptoms of multiple sclerosis are loss of balance, muscle spasms, numbness in any area, problems with walking and coordination, tremors in one or more arms and legs. Bowel and bladder symptoms include frequency of micturition, urine leakage, eye symptoms like double vision uncontrollable rapid eye movements, facial pain, painful muscle spasms, tingling, burning in arms or legs, depression, dizziness, hearing loss, fatigue etc. The treatment is essentially limited to symptomatic therapy so the course of action would not change much whether MS has been diagnosed or not. Apart from clinical neurological examination, MRI shows MS as paler areas of demyelination, two different episodes of demyelination separated by one month in at least two different brain locations. Spinal tap is done and CSF electrophoresis reveals oligoclonal bands suggestive of immune activity, which is suggestive but not diagnostic of MS. Demyelinating neurons, transmit nerve signals slower than non-demyelinated ones and can be detected with EP tests. These are visual evoked potentials, brain stem auditory evoked response, and somatosensory evoked potential. Slower nerve responses in any one of these is not confirmatory of MS but can be used to complement diagnosis along with a neurological examination, medical history and an MRI in addition, a spinal tap. Therefore, it would be prudent to consult your neurologist with these concerns. Causes of strokes can be investigated like high blood pressure and high cholesterol along with brain hemorrhage. Take care
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