. Physiology, experimental and descriptive . Fig. 9. Diagram Shouting Arrangement of Nervous System. DISSECTION OF THE SPINAL COED. 31 the sides of the backbone. This can be done rapidly by mak-ing long, deep cuts with the cartilage knife along the sidesof the backbone, in the planes indicated in the accompany-ing figure. Between the skull and the first verjtebra is a space cov-ered by a thin membrane, through which the Spinal Cordmay be seen. Carefully cut through this membrane, and in-sert the point of one blade of a pair of bone forceps at one. Fig. 10. Diagram for Dissecting Spinal Cord. 1
. Physiology, experimental and descriptive . Fig. 9. Diagram Shouting Arrangement of Nervous System. DISSECTION OF THE SPINAL COED. 31 the sides of the backbone. This can be done rapidly by mak-ing long, deep cuts with the cartilage knife along the sidesof the backbone, in the planes indicated in the accompany-ing figure. Between the skull and the first verjtebra is a space cov-ered by a thin membrane, through which the Spinal Cordmay be seen. Carefully cut through this membrane, and in-sert the point of one blade of a pair of bone forceps at one. Fig. 10. Diagram for Dissecting Spinal Cord. 1. Cut along 1 2 with cartilage knife. 2. Cut along 3 2 with cartilage knife. 3. Cut along 4 with bone forceps. side of the spinal cord. Cut through this side of the arch ofthe vertebra; repeat this on the other side, and so on, throughthe whole length of the spinal column, removing the dorsalparts of the vertebrae, held together in one strip by the con-nective tissue. The bony cavity in which the spinal cord liesis the Neural Cavity. The work may be more easily done if the rabbit is sup-ported on the edge of a brick, or, better, on the edge of a 32 SPINAL NERVES: short piece of two by four scantling «ailed to a base-boardeight inches wide and a foot and a half long. Now look for the Spinal Nerves, which leave the spinalcord in pairs, right and left, between the successive will probably be necessary to cut away considerably morebone to expose the nerves. The whole of this work requiresthe utmost care and patience, and involves
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