What are lesions of motor neurons?

Motor neuron lesion is any damage or abnormality in the nerves responsible for controlling the body movement. Neural lesion engine can have many different causes, including physical trauma, autoimmune disorders and abnormalities in fetal development. They interfere with normal engine control and thus movement, as damaged neurons become less effective in their task of transmitting signals between the central nervous system and muscles. In addition to mobility in the limbs and abilities such as walking, they can also interfere with other engine functions such as speaking, chewing and swallowing. The effects may vary very much, from minor damage to muscle control to complete paralysis or death. The upper motor neurons begin in the motor cortex and stretch down into the brain stem and spinal cord, where they meet the lower motor neurons that reach from the spine to the muscles. The effects of motor neuron lesion depend on where it is. A common feature of both types of lesions are abnormalities in muscle tone or tone, partial muscleTitle contractions that are constantly occurring in the body. The exact nature and severity of the symptoms caused by the lesions of motor neurons depend on their size and location.

lesions in upper motor neurons usually cause symptoms such as reduced strength, problems with fine engine control and spasticity. Spasticity is a condition in which the muscle tol person is raised to abnormal levels, resulting in a state of constant muscle tension called hypertonium. The muscles decrease and less flexible, in some serious cases to the point of immobility and suffering may have muscle cramps or develop problems with possession of body or walking. Excessive muscle tension can also cause excessive reflexes or hyperreflexia.

The lower lesion of motor neurons usually causes a flabby paralysis, a condition in which muscles become weak and muscle tol is too low, a condition called hypotonia. It can haveAs a result of partial or overall loss of mobility in the affected muscles and may eventually lead to wasting atrophy and muscle waste. Lower lesions of motor neurons can also cause reduced or completely absent reflexes, called hyporeflexia and irregular contractions called fibrillation in skeletal muscles.

Diseases affecting motor neurons are often progressive in nature, causing greater damage to the nervous system and greater damage over time, although this is not always the case. The lesions of upper motor neurons are most commonly observed in people who suffer from brain palsy and are also the cause of primary lateral sclerosis and some forms of multiple sclerosis. Lesters of lower motor neurons are observed in conditions such as progressive muscle atrophy, backbone muscular and progressive Bulbar. Amyotrophic lateral sclerosis, commonly called Lou Gehrig's disease, affects upper and lower motor neurons.