Final answer:
The anterior white commissure is a white matter structure in the spinal cord that connects the anterior columns. It carries motor commands from the brain to the spinal cord and controls output to the periphery.
Step-by-step explanation:
The anterior white commissure is a structure located in the spinal cord. It is composed of many different groups of axons of both ascending and descending tracts.
This white matter connects the anterior columns of the spinal cord, which carry motor commands from the brain to the spinal cord and control output to the periphery.