Symptoms of motor functions include the following:
- Clonus
- A rhythmical contraction of the muscle in response to a sudden applied and then sustained stretch stimulus.
- Dysarthia
- A speech disorder in which pronunciation is unclear.
- Hemiparesis
- Paralysis of one side of the body. Movements of the face and arms are often more severely affected than those of the legs.
- Paralysis (plegia)
- Muscle impairment or loss or muscle function that varies in its extent, its severity and the degree of spasticity or flaccidity.
- Paresis
- Muscular weakness caused by disease of the nervous system.
- Paraparesis
- Weakness of both legs.
- Spasms
- A sustained involuntary muscular contraction.
- Spasmus Nutans
- Combination of symptoms including a slow nodding movement of the head, Nystagmus (involuntary movements of the eye), and spasm of the neck muscles.
- Spasticity
- Resistance to the passive movement of a limb that is maximal at the beginning of the movement and gives way as more pressure is applied. Spasticity is usually accompanied by weakness in the affected limb.
- Spastic Paralysis
- Weakness of a limb or limbs associated with increased reflex activity.
- Tetraparesis
- Paralysis affecting all four limbs.
- Tremor
- A rhythmical alternating movement that may affect any part of the body. Examples of tremor are as follows:
- Essential Tremor: Slower and particularly affects the hands.
- Primary Orthostatic Tremor: Affects the legs when standing still, causing unsteadiness if the position is maintained.
- Intention Tremor: Occurs when a patient with disease to the cerebellum tries to touch an object. The closer the object is approached, the wilder become the movements.
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