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Each nerve trunk is composed of a variable number of different sized bundle (funiculi) of nerve fibers which have a special sheath (perineurium) The funiculi are enclosed in a firm fibrous sheath (epineurium); this sheath also send in processes of connective tissue which connect the bundles together. In the funiculi between the fibers is a delicate supporting tissue ( the endoneurium). Shown is a transverse section of the sciatic nerve of a cat. It consists of bundles (Funiculi) of nerve fibers ensheathed in a fibrous supporting capsule, epineurium, A; each bundle has a special sheath ( not sufficiently marked out from the epineurium in the figure) or perineurium B; the nerve fibers N f are separated from one another by endoneurium; L, lymph spaces; Ar, artery; V, vein; F, fat.

Nerve Trunk

Each nerve trunk is composed of a variable number of different sized bundle (funiculi) of nerve fibers…

View of the nervous system of man, showing the nerve centers (brain and spinal cord) giving off nerves to supply the whole of the body.

The Nervous System

View of the nervous system of man, showing the nerve centers (brain and spinal cord) giving off nerves…