NEET PG DENTAL EXAM

Detailed explanation-1: -Astrocytes and OLs are able to regenerate in response to CNS injury, and glial regeneration and repair are essential for long-term homeostasis and for complete recovery of integrated functions.

Detailed explanation-2: -In the distal stump, denervated Schwann cells convert to a repair supportive phenotype. These repair (Bungner) Schwann cells form regeneration tracks (Bungner bands; dark blue cells) that guide regenerating axons back to their targets and provide essential trophic support for injured neurons.

Detailed explanation-3: -Axon of a neuron surrounded by the myelin sheath, Schwann cell. Each Schwann cell makes up a single myelin sheath on a peripheral axon, with each ensuing myelin sheath made by a different Schwann cell, such that numerous Schwann cells are needed to myelinate the length of an axon.