What type of neurons are predominantly located in the dorsal root ganglion?

What type of neurons are predominantly located in the dorsal root ganglion?

• A. Pseudounipolar sensory neurons
• B. Multipolar motor neurons
• C. Interneurons
• D. Purkinje cells

Answer: (A)

Dorsal root ganglia contain the cell bodies of sensory neurons that bring information from the periphery to the CNS. These neurons are pseudounipolar, meaning they have a single process that quickly splits into a peripheral branch to receptors and a central branch into the spinal cord. This arrangement lets sensory signals travel efficiently from the body into the CNS. In contrast, motor neurons are multipolar and located in the ventral spinal cord, interneurons reside mainly within the CNS, and Purkinje cells are a distinct cerebellar neuron type. So the predominantly located neuron type in the dorsal root ganglion is the pseudounipolar sensory neuron.

Dorsal root ganglia contain the cell bodies of sensory neurons that bring information from the periphery to the CNS. These neurons are pseudounipolar, meaning they have a single process that quickly splits into a peripheral branch to receptors and a central branch into the spinal cord. This arrangement lets sensory signals travel efficiently from the body into the CNS. In contrast, motor neurons are multipolar and located in the ventral spinal cord, interneurons reside mainly within the CNS, and Purkinje cells are a distinct cerebellar neuron type. So the predominantly located neuron type in the dorsal root ganglion is the pseudounipolar sensory neuron.