Multiple Choice
The gray matter of the cerebral cortex, where most higher-level thinking occurs, is composed mostly of __________.
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45. Nervous System
Central and Peripheral Nervous System
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After a stroke, Bill can feel his left leg but is unable to move it. His neurologists suspect damage to the __________.
A
parietal lobe
B
occipital lobe
C
temporal lobe
D
cerebellum
E
frontal lobe
Verified step by step guidance1
Understand the role of the frontal lobe: The frontal lobe is responsible for voluntary movement, decision making, and problem-solving. It contains the primary motor cortex, which is crucial for controlling movements.
Consider the symptoms: Bill can feel his left leg but cannot move it. This suggests that sensory pathways are intact, but motor pathways are impaired.
Identify the function of each brain region: The parietal lobe processes sensory information, the occipital lobe is involved in vision, the temporal lobe handles auditory information and memory, and the cerebellum coordinates movement and balance.
Focus on the frontal lobe: Since the frontal lobe is responsible for voluntary movement, damage to this area could result in the inability to move a limb despite being able to feel it.
Conclude that the frontal lobe is likely affected: Given the symptoms and the role of the frontal lobe in movement, neurologists suspect damage to this area.
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