Pseudounipolar neurons have a cell process that divides into two branches.

Pseudounipolar neurons have a cell process that divides into two branches.

• A. They lack processes
• B. They have two processes that function as dendrites
• C. They are motor neurons in the brain
• D. They have a single process that splits into an axon and a dendrite

Answer: (D)

Pseudounipolar neurons are sensory cells with a single neurite that soon divides into two branches. One branch runs to peripheral sensory receptors, the other projects into the central nervous system. Because the two branches come from one initial process, this arrangement is described as a single process that splits into an axon and a dendrite. In reality, both branches function as axonal pathways—they conduct impulses in and out—rather than true dendrites, which helps explain why this description fits best. The other options don’t fit because there aren’t multiple true processes or dendritic structures, and these cells are not motor neurons in the brain.

Pseudounipolar neurons are sensory cells with a single neurite that soon divides into two branches. One branch runs to peripheral sensory receptors, the other projects into the central nervous system. Because the two branches come from one initial process, this arrangement is described as a single process that splits into an axon and a dendrite. In reality, both branches function as axonal pathways—they conduct impulses in and out—rather than true dendrites, which helps explain why this description fits best. The other options don’t fit because there aren’t multiple true processes or dendritic structures, and these cells are not motor neurons in the brain.