Term
| Peripheral Nervous System: Fasciculation |
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Definition
| Spontaneous firing of single neurons: anterior horn cell fires, leading to mvt that isn't supposed to be there like twitching of lower eyelid. Will spontaneously resolve |
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Term
| Peripheral Nervous System: Muscle cramps |
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Definition
| Hundreds of anterior horn cells fire spontaneously. Mostly benign, but can be a disorder. |
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Term
| Peripheral nervous system: Periodic Limb movement disorder |
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Definition
| Frequent kicking of leg in sleep. Disrupts sleep. |
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Term
| Movement disorders with voluntary control |
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Definition
Ticks, Turret's, Restless leg syndrome
Have to do them to relieve tension, borders on OCD. |
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Term
| Movement disorders with voluntary control: TIck |
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Definition
| Facial and neck gestures that come when nervous. Have to do them to relieve tension. Involves nerves of the brachial plexus region. ALso compulsion to do things- like poke eyeball out. |
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Term
| Movement disorders with voluntary control: Turret's |
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Definition
| A severe case of tick. One type is just movement. One type is voluntary mvt plus swearing. |
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Term
| Movement disorders with voluntary control: restless leg syndrome |
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Definition
| Esp at night. Correlated with the action of iron in dopamine system. Can arise from iron xu. |
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Term
| Central nervous system: Tremors: Types |
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Definition
Physiologic tremor
Withdrawal tremor
Essential tremor
Tremor of parkinson's |
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Term
| Central nervous system: Tremors: Physiologic tremor |
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Definition
| Most people exhibit a fine. rapid tremor with outstretched hands. In general, tremor may be exaggerated by stress, anxiety, fatigue, metabolic derangement (withdrawal, thyrotoxicosis, drugs(caffeine, other phosphodiesterase inhibitors, b-adrenergic agonists, cortico steroids), hypothyroidism |
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Term
| Central nervous system: Tremors: Withdrawal tremor |
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Definition
| On chronic hypnotic sedatives or some stimulants with sudden withdrawal there's sudden intense sympathetic activation that causes tremors and even seizures. |
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Term
| Central nervous system: Tremors: Essential tremor |
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Definition
Common. Sometimes sporadic. Starts young. Starts unilateral, then becomes bilateral.
Postural: worse when trying to do something. Can affect vocal chords. |
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Term
| Central nervous system: Tremors: Essential tremor causes |
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Definition
| Genetic mutation. Degeneration in baso-ganglion , extra pyramidal motor system which are the circuitry of motor movement. Lesions in different parts o baso ganglion system cause either essential tremor or Parkinson's. |
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Term
| Central nervous system: Tremors: Essential tremor treatment |
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Definition
| Implanted electrical leads in brain abort tremors. Invasive but not very destructive to brain. |
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Term
| Central nervous system: Tremors: Tremor of Parkinson's |
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Definition
| Resting tremor. Unilateral. GOes away when moving. Spares the vocal chords. |
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