Final answer:
The type of neuroglial cell that myelinates axons in the peripheral nervous system is Schwann cells.
Step-by-step explanation:
The type of neuroglial cell that myelinates axons in the peripheral nervous system is Schwann cells. Schwann cells wrap around a portion of one axon segment and produce the myelin sheath that insulates the axons in the PNS. They are different from oligodendrocytes, which myelinate axons in the central nervous system.