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Why is spastic cerebral palsy caused by lesion in pyramidal tract?

by sameeralord
Tags: caused, cerebral, lesion, palsy, spastic
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May25-14, 02:51 AM
P: 640
Hello everyone,

The way I remember upper motor neuron lesions. I always thought a singular lesion in pyramidal tract would only cause Babiniski sign and loss of superficial reflexes. For a UMN to cause spasticty it must affect extra pyramidal motor tracts such as reticulospinal tract.

But I just read in this website spastic cerbral palsy is pyramidal and non spastic is extrapyramidal. How can that be?

Also did I understand these terms right

Plegia : Complete paralysis.
Diplegia: Lower Limbs affected more than Upper Limb . Isn't this same as paraplegia?
Quadriplgia: All 4 limbs affected. Are UL more affected than LL.

Thank you
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Greg Bernhardt
Jun20-14, 11:45 AM
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