Final answer:
The axons of the lateral corticospinal tract cross over at the pyramidal decussation and continue down the spinal cord in the lateral column. This tract controls appendicular muscles.
Step-by-step explanation:
The axons of the lateral corticospinal tract leave the medulla and cross over to the opposite side of the brain at a point called the pyramidal decussation. After crossing over, these axons continue down the spinal cord in the lateral column. The lateral corticospinal tract is responsible for controlling appendicular muscles, which include the muscles of the arms and legs.