Ultrastructure of Myelinated and Unmyelinated Axons

Fig. 1.1

Axons inside fascicles of a sciatic nerve. Transmission electron microscopy, magnification: ×7,000 (a); ×3,000 (b)

Fig. 1.2

(a) Unmyelinated axon of a human nerve rootlet. (b) Myelinic axon surrounded by Schwann cells and an unmyelinated axon of a human nerve rootlet. Transmission electron microscopy, magnification: ×15,000 (a); ×25,000 (b)

Fig. 1.3

Unmyelinated axon of a human nerve rootlet. Transmission electron microscopy, magnification: ×30,000 (a); ×50,000 (b)

Fig. 1.4

Unmyelinated axon of a human nerve rootlet. Transmission electron microscopy, magnification: ×40,000 (a); ×50,000 (b)

Fig. 1.5

(a) Unmyelinated axon of a human nerve rootlet. (b) Unmyelinated axon of a sciatic nerve (From De Andrés et al. [4]; with permission) Transmission electron microscopy, magnification: ×100,000 (a); ×20,000 (b)

Fig. 1.6

Unmyelinated axon of a sciatic nerve. Transmission electron microscopy, magnification: ×30,000 (a); ×30,000 (b)

Fig. 1.7

Myelinated axon of a sciatic nerve. Transmission electron microscopy, magnification: ×20,000 (a); ×12,000 (b) (Panel b from Reina et al. [1]; with permission)

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