Which brain region located at the rear of the frontal lobes directs voluntary movement on the opposite side of the body?

Which brain region located at the rear of the frontal lobes directs voluntary movement on the opposite side of the body?

• A. Somatosensory Cortex
• B. Motor Cortex
• C. Occipital Lobes
• D. Temporal Lobes

Answer: (B)

Voluntary movement is controlled by the motor cortex, which sits at the rear part of the frontal lobes. Neurons here generate the signals that travel down to the spinal cord to activate muscles. Because these motor pathways cross to the opposite side of the body in the brainstem, the left motor cortex controls the right side and vice versa. The motor cortex is organized as a map of the body, with more area devoted to fine, skilled movements like those of the hands and face. The other regions mentioned do different jobs: the somatosensory cortex, located in the parietal lobe, processes touch and body sensations; the occipital lobes handle visual information; the temporal lobes deal with hearing and memory.

Voluntary movement is controlled by the motor cortex, which sits at the rear part of the frontal lobes. Neurons here generate the signals that travel down to the spinal cord to activate muscles. Because these motor pathways cross to the opposite side of the body in the brainstem, the left motor cortex controls the right side and vice versa. The motor cortex is organized as a map of the body, with more area devoted to fine, skilled movements like those of the hands and face.

The other regions mentioned do different jobs: the somatosensory cortex, located in the parietal lobe, processes touch and body sensations; the occipital lobes handle visual information; the temporal lobes deal with hearing and memory.