. The anatomy of the horse : a dissection guide. Horses; Horses -- Anatomy. DISSECTION OF THE BACK AND THORAX. 143 sensory, or ganglionic root consists of filaments which arise along the supero-lateral fissure of the cord. These filaments perforate the dura mater, and converge towards the intervertebral foramen, where they form a cord on which there is superposed a reddish oval ganglion. Immediately beyond the ganglion the cord mixes its fibres with the inferior root. The inferior, motor, or aganglionic root consists of fibres detached from the cord along its infero-lateral fissure. These, whi
. The anatomy of the horse : a dissection guide. Horses; Horses -- Anatomy. DISSECTION OF THE BACK AND THORAX. 143 sensory, or ganglionic root consists of filaments which arise along the supero-lateral fissure of the cord. These filaments perforate the dura mater, and converge towards the intervertebral foramen, where they form a cord on which there is superposed a reddish oval ganglion. Immediately beyond the ganglion the cord mixes its fibres with the inferior root. The inferior, motor, or aganglionic root consists of fibres detached from the cord along its infero-lateral fissure. These, which are fewer and smaller than those of the superior root, perforate the dura mater by openings distinct from those for the superior root; and, converging towards the intervertebral foramen, they join the superior root immedi- ately external to the point at which the ganglion is placed on it. The fibres of the inferior root, thus, have uo connection with the ganglion. Where the superior and inferior roots meet in the intervertebral foramen they mix their fibres and form a short common cord, which almost immediately divides into two—the superior and the inferior primary. Fig. 18. Portion of Spixal Cord with the Roots of the Nerves (Quoin). 1. Inferior median fissure; 2. Superior median fissure; 3. Infero-lateral fissure (exaggerated); 4. Supero-lateral fissure ; 5. Inferior roots passing under the ganglion (on the left side these are cut); 6. Superior roots, the fibres of which pass into the ganglion— 6'; 7. The united or compound nerve ; 8. Superior primary branch ; 9. Inferior primary branch. branch; and each of these contains fibres from both roots. Both branches emerge by an intervertebral foramen, and, roughly speaking, the series of superior primary branches supply the skin and muscles above their points of emergence, while the inferior primary branches are distributed to the skin and muscles below their points of emergence, including the limbs. From the common trunk fo
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecthorses, bookyear1922
