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Motor disorders are malfunctions of the nervous system that cause involuntary or uncontrollable movements or actions of the body. [3] These disorders can cause lack of intended movement or an excess of involuntary movement. [4] Symptoms of motor disorders include tremors, jerks, twitches, spasms, contractions, or gait problems. [citation needed]
Motor neuron diseases affect both children and adults. [5] While each motor neuron disease affects patients differently, they all cause movement-related symptoms, mainly muscle weakness. [6] Most of these diseases seem to occur randomly without known causes, but some forms are inherited. [2]
People afflicted with this disease may walk in a jerky, non-fluid manner. They will not know where their arms and legs are without looking (i.e., a failure of proprioception), but can, for instance, feel and locate a hot object placed against their feet.
A neuromuscular disease is any disease affecting the peripheral nervous system (PNS), [a] the neuromuscular junctions, or skeletal muscles, all of which are components of the motor unit. [4] Damage to any of these structures can cause muscle atrophy and weakness. Issues with sensation can also occur. Neuromuscular diseases can be acquired or ...
Locomotive syndrome is a medical condition of decreased mobility due to disorders of the locomotor system. [1] The locomotor system comprises bones, joints , muscles and nerves . It is a concept put forward by three professional medical societies in Japan: the Japanese Society for Musculoskeletal Medicine, the Japanese Orthopaedic Association ...
Flaccid dysarthria is a motor speech disorder resulting from damage to peripheral nervous system (cranial or spinal nerves) or lower motor neuron system. Depending on which nerves are damaged, flaccid dysarthria affects respiration, phonation, resonance, and articulation. It also causes weakness, hypotonia (low-muscle tone), and diminished ...
Movement disorders are clinical syndromes with either an excess of movement or a paucity of voluntary and involuntary movements, unrelated to weakness or spasticity. [1] Movement disorders present with extrapyramidal symptoms and are caused by basal ganglia disease . [ 2 ]
Ataxia (from Greek α- [a negative prefix] + -τάξις [order] = "lack of order") is a neurological sign consisting of lack of voluntary coordination of muscle movements that can include gait abnormality, speech changes, and abnormalities in eye movements, that indicates dysfunction of parts of the nervous system that coordinate movement, such as the cerebellum.
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