180k views
0 votes
If there is a stroke in the motor portion of the left side of the brain, it affects muscles of the right side of the body. Why?

User Zac Kwan
by
8.1k points

1 Answer

1 vote

Final answer:

The language functions of the cerebral cortex are localized to the left hemisphere, which is connected to the right side of the body through the corticospinal tract and the ascending tracts of the spinal cord.

Step-by-step explanation:

The reason for this is that the language functions of the cerebral cortex are localized to the left hemisphere in 95 percent of the population. Additionally, the left hemisphere is connected to the right side of the body through the corticospinal tract and the ascending tracts of the spinal cord. Motor commands from the precentral gyrus control the opposite side of the body, whereas sensory information processed by the postcentral gyrus is received from the opposite side of the body.

User Sebastian Thees
by
7.5k points