. On the anatomy of vertebrates. Vertebrates; Anatomy, Comparative; 1866. From the sympnthctic fpr;istiic) gaiigliuii of the Ray. CCXXII. 211 It consists of ' ganglionic corpuscles,'or ganglion-vesicles, fig. 210 a, h, c, and nerve-fibres, imbedded in a nucleated fibrous tissue. The ganglion vesicle may be circumscribed, or be continued into a nerve-fibre, or into two nerve-fibres from opposite poles of tlie vesicle ; it is termed ac- cordingly 'apolar,' 'unipolar,' and ' bi-polar: ' the last is the most common form, the first probably a c'cnctic stase. When a ffan- glion-ccU is connected by m
. On the anatomy of vertebrates. Vertebrates; Anatomy, Comparative; 1866. From the sympnthctic fpr;istiic) gaiigliuii of the Ray. CCXXII. 211 It consists of ' ganglionic corpuscles,'or ganglion-vesicles, fig. 210 a, h, c, and nerve-fibres, imbedded in a nucleated fibrous tissue. The ganglion vesicle may be circumscribed, or be continued into a nerve-fibre, or into two nerve-fibres from opposite poles of tlie vesicle ; it is termed ac- cordingly 'apolar,' 'unipolar,' and ' bi-polar: ' the last is the most common form, the first probably a c'cnctic stase. When a ffan- glion-ccU is connected by more than two processes with nerves, it is a ' multipolar cell:' these are most common in the ganglia of the main cord of the symjDa- thetic; the bipolar cells prevail in the ganglia of the posterior roots of the spinal nerves, fig. 201. The nerve-fibres in ganglions consist of the ' white' or Jjroadcr kind,and of the 'grey'or finer kind; there are also still more minute but solid or homogeneous fibres, surrounding and connecting the true nervous constituents of the ganglion. A nerve on entering a ganglion breaks up into its component fibres, which interlace about the ganglion-cells, some- times winding roimd them, with plexiform interchanges of fibres from other entering nerves and from the cells. Bidder and Volkman' give the subjoined magnified view, fig. 212, of the 'intercommunicating' nerve-fibresbetween a sympathetic o-ano'lion and a spinal nerve in the Fro"-. H p is the sympathetic, n showing the part next the head; c p is the spinal nerve, C showing the part next the myelon; « is a portion of the communicatin. A. Spinal of tlie Ray, 40 diameters. B. Portion of the same, dissected, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Owen, Richard, 1804-1892; Cornell University. Co
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