Question

A patient has suffered a cerebral hemorrhage that has caused dysfunction of the precentral gyrus of his right cerebral cortex. what could be the result?

Answer 1

He cannot voluntarily move his left arm or leg.

What is the function of the Precentral gyrus ?

• The primary motor cortex, also referred to as the precentral gyrus, is a crucial region involved in carrying out voluntary motor movements.
• It is a cerebral convolution with a diagonal orientation that is located in the back of the frontal lobe.

What does the right precentral gyrus control?

The area of the brain's neocortex responsible for carrying out voluntary movements is known as the precentral gyrus (PCG), commonly referred to as the motor strip or primary motor cortex.

Which area acts as a filter for sensory information coming into the sensory cortex?

• Furthermore, the thalamus is crucial for perception, with 98% of all sensory input being relayed by it.
• The only sensory information that is not relayed by the thalamus into the cerebral cortex is information related to smell (olfaction).

Learn more about Precentral gyrus

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