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Why Babinski is normal in children?

15K views 10 replies 7 participants last post by  sahithya 
#1 ·
why is it normal to have babinski sign in child but in adult its pathology?

kaplan- because in child neuron not myelinated

mechanism and relation?:notsure:
 
#2 ·
I found this:

Infants will also show an extensor response. A baby's smaller toes will fan out and their big toe will dorsiflex slowly. This happens because the corticospinal pathways that run from the brain down the spinal cord are not fully myelinated at this age, so the reflex is not inhibited by the cerebral cortex. The extensor response disappears and gives way to the flexor response around 12-24 months of age.
 
#5 ·
I found this:

Infants will also show an extensor response. A baby's smaller toes will fan out and their big toe will dorsiflex slowly. This happens because the corticospinal pathways that run from the brain down the spinal cord are not fully myelinated at this age, so the reflex is not inhibited by the cerebral cortex. The extensor response disappears and gives way to the flexor response around 12-24 months of age.
So the reflex is not inhibited by corticospinal pathway (by stretch reflex I guess)
Is it due to slow conduction!
but even though this tract is responsible for voluntary movement.
then again how? :toosad::toosad:
 
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