Where are the cell bodies of multipolar motor neurons located in the spinal cord cross-section?

Where are the cell bodies of multipolar motor neurons located in the spinal cord cross-section?

• A. Dorsal horn
• B. Lateral horn
• C. Ventral horn
• D. Dorsal median sulcus

Answer: (C)

The cell bodies of multipolar motor neurons are located in the ventral (anterior) horn of the spinal cord’s gray matter. These motor neurons, including alpha and gamma types, send their axons out through the ventral roots to innervate skeletal muscles. In a cross-section, the ventral horn sits at the front part of the gray matter and is specialized for motor control. By contrast, the dorsal horn mainly contains interneurons that process sensory input, the lateral horn houses autonomic preganglionic neurons (in thoracic and upper lumbar regions), and the dorsal median sulcus is simply a surface groove, not a neuron body location.

The cell bodies of multipolar motor neurons are located in the ventral (anterior) horn of the spinal cord’s gray matter. These motor neurons, including alpha and gamma types, send their axons out through the ventral roots to innervate skeletal muscles. In a cross-section, the ventral horn sits at the front part of the gray matter and is specialized for motor control. By contrast, the dorsal horn mainly contains interneurons that process sensory input, the lateral horn houses autonomic preganglionic neurons (in thoracic and upper lumbar regions), and the dorsal median sulcus is simply a surface groove, not a neuron body location.