Schwann cells are specialized cells in the peripheral nervous system that play a crucial role in supporting and insulating nerve fibers. They wrap around the axons of neurons, forming a protective myelin sheath that enhances the speed of electrical signals. This myelination is essential for efficient communication between nerve cells. In addition to providing insulation, Schwann cells also aid in the repair and regeneration of damaged nerves. When a nerve is injured, these cells help guide the regrowth of axons, facilitating recovery and restoring function. Their ability to support nerve health is vital for the overall functioning of the nervous system.