1. Plural of neurilemma; the thin sheath of connective tissue that surrounds the axon of a nerve fiber, formed by Schwann cells in the peripheral nervous system.
Usage: anatomy; also called neurolemma

Examples

• The neurilemmas of peripheral nerves protect and insulate individual axons.
• Damage to the neurilemmas can impair nerve signal transmission.
• Under the microscope, the neurilemmas appear as thin, translucent layers surrounding nerve fibers.
• The neurilemmas are composed of myelin in myelinated fibers and lack myelin in unmyelinated fibers.
• Schwann cells produce the neurilemmas that wrap around axons in the peripheral nervous system.