Term Name: sheath of Schwann
Synonyms: endoneural membrane, neurolemma, Schwann's membrane, sheath of Schwann
Definition: The outermost nucleated cytoplasmic layer of Schwann cells that surrounds the axon of the neuron. It forms the outermost layer of the nerve fiber in the peripheral nervous system. The neurolemma is underlain by the basal lamina (referred to as the medullary sheath in the included illustrations. In CNS, axons are myelinated by oligodendrocytes, thus lack neurolemma.
Ontology: Uberon Ontology [UBERON:0001031]

Relationships
is part of: peripheral nervous system
is a type of: cell layer structure with developmental contribution from neural crest