. The anatomical record. Anatomy; Anatomy. PYRAMIDAL TRACT IX THE GUIXEA-PIG Wl crossed lateral or direct ventral columns as is the case in the Canadian ])orcupine. Sections through the second cervical segment (fig. 5) show a considerable change in the area occupied b}' the fibers of the tract. It is crescent-shaped; the dorsal border is concave; the mesial border lies against the ])osterior medium septum, oc-. Fig. 5 6 3 Transverse section, medulla oblongata through lower (caudal) extremity of pyramidal decussation. X 10. Fig. 4 Transverse section, first cervical segment of spinal cord. Fig.
. The anatomical record. Anatomy; Anatomy. PYRAMIDAL TRACT IX THE GUIXEA-PIG Wl crossed lateral or direct ventral columns as is the case in the Canadian ])orcupine. Sections through the second cervical segment (fig. 5) show a considerable change in the area occupied b}' the fibers of the tract. It is crescent-shaped; the dorsal border is concave; the mesial border lies against the ])osterior medium septum, oc-. Fig. 5 6 3 Transverse section, medulla oblongata through lower (caudal) extremity of pyramidal decussation. X 10. Fig. 4 Transverse section, first cervical segment of spinal cord. Fig. 5 Transverse section, second cervical segment. X 10. Fig. 6 Transverse section, fifth cervical segment. X 10. X 10. cupying about one-fourth of the distance between the posterior gray commissure and the free margin of the section. The degeneration is less dense than in the first cervical segment indicating a distinct diminution in the number of fibers. In the third, fourth and fifth cervical segments (fig. 6) the general appearance of the tract changes little, but there is a progressive faUing off in the number of fibers which it 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 Bardeen, Charles Russell, 1871-1935, ed; Boyden, Edward A. (Edward Allen), 1886-1976; Bremer, John Lewis, 1874- ed; Hardesty, Irving, b. 1866, ed; American Association of Anatomists; American Society of Zoologists; Wistar Institute of Anatomy and Biology. [New York, etc. ] A. R. Liss [etc. ]
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectanatomy, bookyear1906
