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paralysis or palsy (pôlˈzē), complete loss or impairment of the ability to use voluntary muscles, usually as the result of a disorder of the nervous system. The nervous tissue that is injured may be in the brain, the spinal cord, or in the muscles themselves. Accordingly there may be general paralysis, involvement of only one side (hemiplegia), paralysis on both sides at one level (paraplegia or quadriplegia), or localized paralysis in a small group of nerves or muscles.

The cause of paralysis may be any injury that tears or compresses the nerves; it may be hemorrhage, tumor, infection, or substances toxic to nerve tissue. One of the most frequent causes of paralysis is stroke, in which hemorrhage, thrombosis, or obstruction of a cerebral vessel interferes with nerve function. Another disorder in which a resting tremor is one of the main symptoms, accompanied by slowness and poverty of movement, muscular rigidity, and postural instability is Parkinson's disease. Cerebral palsy is due to an injury to the brain motor tissue before or during birth. However, this disorder is nonprogressive. Partial or complete paralysis often accompanies multiple sclerosis.

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Any of various special types of paralysis, such as cerebral palsy.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


paralysis, esp of a specified type
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
'Until recently, we did not know much about the consequences of ageing with cerebral palsy,' said study leader Dr Jennifer Ryan, who lectures at both RSCI and Brunel.
Anyone affected by a facial palsy is welcome to come along.
By practice and repetition of activity, brain can be trained with specific patterns and skills that can help the children with cerebral palsy to control their body10.
The Shrewsbury and Telford Hospital NHS Trust (SaTH) has launched the PReCePT (The Prevention of Cerebral Palsy in Pre-Term Labour) programme on its delivery suite at the Princess Royal Hospital in Telford.
For some children, the condition resolves with time, but others may have permanent facial palsy.
According to CPF, the merger of these two organisations in the field of cerebral palsy and disability will leverage the organisations' unique strengths and complementary capabilities to advance the field in new and innovative ways.
The Cerebral Palsy Foundation was established in 1977 as a voluntary charitable organization, specializing in the care of children with cerebral palsy and similar disabilities.
Half of ambulatory children and teenagers with cerebral palsy experience problems with walking.
Mahboob ur Rahman was runner for World Cerebral Palsy Day Award 2018 but his services were recognized and appreciation certificate was awarded to him.
Out of 97 children with cerebral palsy, 89 (91.7%) had abnormal neuroimaging findings.
The government of Kyrgyzstan has bought quality and expensive wheelchairs for children with palsy for the first time.
In that time, I have done everything possible to give my child, Princess, who has multiple special needs, (cerebral palsy and bilateral profound hearing loss) the best life imaginable.