Paralysis
From Freepedia
Paralysis is the complete loss of muscle function for one or more muscle groups. Major causes are stroke, trauma, poliomyelitis, amyotrophic lateral sclerosis (ALS), botulism, spina bifida, multiple sclerosis, and Guillain-Barré syndrome.
Paralysis may be localized, or generalized, or it may follow a certain pattern. For example, localized paralysis occurs in Bell's palsy where one side of the face may be paralysed due to inflammation of the facial nerve on that side. Patients with stroke may be weak throughout their body (global paralysis) or have hemiplegia (weakness on one side of the body) or other patterns of paralysis depending on the area of damage in the brain. Other patterns of paralysis arise due to different lesions and their sequelae. For example, lower spinal cord damage from a severe back injury may result in paraplegia, while an injury higher up on the spinal cord, such as a neck injury, can cause quadriplegia.
Poisons that interfere with nerve function, such as curare, can also cause paralysis.
Famous people with paralysis include the late Christopher Reeve, Jesse Billauer from the movie Step Into Liquid, and hundreds of thousands of others around the world.
See also
- Paraplegia
- Quadriplegia
- Muscle relaxant
- Ptosis
- Sleep paralysis
- Hemiparesis
- Beriberi
- Jesse Billauer
- Neuroprosthetics
- Brain-computer interface
