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A diagram of nerve tubules A nerve tube consists of a white portion which is fatty, and which protects the central portion, or axis cylinder. Surrounding these is a tubular membrane composed of epithelial cells. The nerve of the body are made up of bundles of these tubes, bound together by connective tissue and enclosed in a sheath of the same. Labels: a, axis cylinder; b, inner border of white substance; c, c, outer border of same; d, ,d, tubular membrane; B, tubular fibers; e, in natural state; f, under pressure; g, g', varicose fibers.

Nerve Tubules

A diagram of nerve tubules A nerve tube consists of a white portion which is fatty, and which protects…