. A treatise on practical anatomy: for students of anatomy and surgery . Fig. 116.—Ganglionic Celi, and Branching Fibres. 8t, cell body ; m, nucleus ; mc. nucleolus; pir. protoplasmic prolongations; tf, (ixis-cylinder fibres; tn, axis-cylinder prolongations. of the body, while the cerebro-spinal system is the systemof animal life and brings the individual into relationswith the exterior world through his special senses andthe operations of his reason and will. 272 PRACTICAL ANATOMY. The gray or vesicular matter consists of vesicles ordiameter cells, wliich vary in size from irnV-n to -g-^-n in
. A treatise on practical anatomy: for students of anatomy and surgery . Fig. 116.—Ganglionic Celi, and Branching Fibres. 8t, cell body ; m, nucleus ; mc. nucleolus; pir. protoplasmic prolongations; tf, (ixis-cylinder fibres; tn, axis-cylinder prolongations. of the body, while the cerebro-spinal system is the systemof animal life and brings the individual into relationswith the exterior world through his special senses andthe operations of his reason and will. 272 PRACTICAL ANATOMY. The gray or vesicular matter consists of vesicles ordiameter cells, wliich vary in size from irnV-n to -g-^-n inch in To 0 0 30 0 They are globular, with one, two, or more. Fig. 117.—Structure of Nerve-Elements. 1. primitive fibrilla; 2, axis-cylinder : .?, Remaks fibres : 4. medullated varicose fibre;5, 6. meduUated fibre, with Schwanns sheath: C, nenrilemma; t, t, Ranviers nodes: b,white substance of Schwann; d. cells of the endoneurium : a. axis-cylinder: x. myelindrops: 7. transverse section of nerve-filire : x. nerve-fibre acte<J on with silver nitrate : nerve-cell from spinal cord : z, axial cylinder process : y. protoplasmic processes—to the right of it a bipolar cell: II, peripheral ganglionic cell, with a connective-tissuecapsule: III, ganglionic cell, with o, a spiral, and n, straight process; m, sheath. NERVOUS TISSUE. 273 branched processes called poles. A cell consists ofa granular protoplasm, sometimes slightly contain a distinct, large, and clear nucleus whichcontains one or two nucleoli. A cell-wall can at times be distinctly demonstratedand probably always exists. In the cortex of the brainthe cells are
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectanatomy, bookyear1891
