L22 HNS
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13 questions
🇬🇧 | 🇬🇧 |
Neurons of cortex and other supraspinal centres send their axons to LMN for higher cortical control | Upper motor neurons |
Cerebellum receives information about every movement from | Corticopontocerebellar pathway |
Pyramidal tracts: end on | Anterior horn ( motor) neuron cells of spinal cord |
Corticospinal or Pyramidal tracts lesion cause | Loss of voluntary skilled movements on opposite side |
Flaccid paralysis ,Atrophy of muscles ,Muscle fasciculations & Loss of reflexe | Lower Motor Neuron lesions |
Loss of fine, voluntary skilled movements in opposite side Babinski’s sign +ve Absent of superficial abdominal cremasteric reflex | Lesion of the pyramidal tracts |
Spasticity or hyper tonicity , Rigidity ,Severe paralysis ,Clasp knife reaction | UMN (extra pyramidal) lesion |