Answer
The representation of the hand is greater in the motor area than in the somatosensory area. This means that the hand movement can be precisely controlled to a high degree. Comparatively the sensitivity of the hand to sensations or external stimuli is lower.
Work Step by Step
The representation of the hand in the motor area of the cerebral cortex is about twice the size of its
representation in the somatosensory cerebral cortex. This means that the hand is better at executing precise movements than it is at detecting weak sensory stimuli or distinguishing between them.
