Which type of neuron has its cell bodies primarily in the ventral horn?

Which type of neuron has its cell bodies primarily in the ventral horn?

• A. Pseudounipolar sensory neurons
• B. Multipolar motor neurons
• C. Unipolar sensory neurons
• D. Bipolar interneurons

Answer: (B)

Cell bodies in the ventral (anterior) horn belong to motor neurons that send signals out to skeletal muscle. These neurons are multipolar, meaning they have several dendrites to integrate inputs from many sources and a single axon to deliver the command to a muscle. The ventral horn is the motor side of the spinal cord’s gray matter; by contrast, sensory neurons have their cell bodies in dorsal root ganglia and are typically pseudounipolar or unipolar, not located in the ventral horn. Bipolar interneurons are a different morphology found in various CNS regions and are not the primary cell type housed there. So, the neuron type with cell bodies primarily in the ventral horn is the multipolar motor neuron.

Cell bodies in the ventral (anterior) horn belong to motor neurons that send signals out to skeletal muscle. These neurons are multipolar, meaning they have several dendrites to integrate inputs from many sources and a single axon to deliver the command to a muscle. The ventral horn is the motor side of the spinal cord’s gray matter; by contrast, sensory neurons have their cell bodies in dorsal root ganglia and are typically pseudounipolar or unipolar, not located in the ventral horn. Bipolar interneurons are a different morphology found in various CNS regions and are not the primary cell type housed there. So, the neuron type with cell bodies primarily in the ventral horn is the multipolar motor neuron.