Neuromuscular Damage and Repair after Dry Needling in Mice

Figure 7

Nerve degeneration and glial participation. Transmission electron microscopy (left) of the first 24 hours after nerve injury accompanied by explanatory diagrams (right). (a) Cross-section of degenerating axon surrounded by a Schwann cell that has lost myelin sheath and is ready for phagocytosis. Initial magnification: 5000x. (b) The terminal Schwann cell completely surrounds the axon terminal and phagocytose. Finally, Schwann cell separates the axon and postsynaptic component. Initial magnification: 5000x.