Anatomy Question

[NYtimes]

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Hi guys, Im a little bit confused about this type of questions. Would anyone explaine the answer please.

Sensation of left teeth and face goes to :

• right parietal
• left parietal

is this correct that sensation goes to the opposite site of brain and motor neurons to the same side in the head and neck but at lower body its opposite? in other word damage to the right side of spinal cord will cause damage to right side sensation and left side motions below that point?

 

[NBDE Part1]

Hi guys, Im a little bit confused about this type of questions. Would anyone explaine the answer please.

Sensation of left teeth and face goes to :

• right parietal
• left parietal

is this correct that sensation goes to the opposite site of brain and motor neurons to the same side in the head and neck but at lower body its opposite? in other word damage to the right side of spinal cord will cause damage to right side sensation and left side motions below that point?

yup, u r absolutely right. the sensory fibres coming from body go in the same line & decussate at the level of brainstem, while motor fibres arising from brain decussate at level of medulla(pyramidal decussation) & opposite side fibers reach the spinal cord. hope that helps 🙂

 

[NYtimes]

yup, u r absolutely right. the sensory fibres coming from body go in the same line & decussate at the level of brainstem, while motor fibres arising from brain decussate at level of medulla(pyramidal decussation) & opposite side fibers reach the spinal cord. hope that helps 🙂

Thanks