Final answer:
Motor fibers exit the spinal cord's gray matter through the ventral root. The anterior horn or ventral horn, which contains multipolar motor neurons, is linked with the ventral root while the dorsal root ganglia house the cell bodies of sensory neurons.
Step-by-step explanation:
The student is matching anatomical structures of the spinal cord with their descriptions. Motor fibers, which are implicated in sending signals from the spinal cord to muscles, leave the spinal cord’s gray matter via the ventral root. The motor fibers originate in the anterior horn gray matter, sometimes referred to as the ventral horn. The motor neurons in this area are multipolar neurons that project through the ventral root and are responsible for causing muscle contractions. The dorsal root ganglia contain the cell bodies of sensory neurons, which enter the spinal cord via the dorsal root.