. The comparative anatomy of the domesticated animals. Horses; Veterinary anatomy. 758 THE CENTRAL AXIS OF TEE NERVOUS SYSTEM. the motor nerve-roots ; while a third—the lateral or intermediate—thicker than the others, is confounded superficially with the inferior, and formed by all that portion of the cord situated between the lines of origin of the superior and Ca^^. TRANSVERSE SECTION OF THE SPINAL CORD IN THE LUMBAR REaiON. (AFTER DEITERS.) , Inferior root; , superior root; , internal portion of the superior root; , superior conomissure ; , inferior commissure ; ,
. The comparative anatomy of the domesticated animals. Horses; Veterinary anatomy. 758 THE CENTRAL AXIS OF TEE NERVOUS SYSTEM. the motor nerve-roots ; while a third—the lateral or intermediate—thicker than the others, is confounded superficially with the inferior, and formed by all that portion of the cord situated between the lines of origin of the superior and Ca^^. TRANSVERSE SECTION OF THE SPINAL CORD IN THE LUMBAR REaiON. (AFTER DEITERS.) , Inferior root; , superior root; , internal portion of the superior root; , superior conomissure ; , inferior commissure ; , central canal. The networlc of myeline fibres in the grey substance, as well as those in the inferior grey commissure, are not indicated. inferior roots. Of these three columns, the first is sensory which in reality are only one—are not.^ the other two— ' The existence of so-calleil "systematic lesions" in Man has led anthropotomists to dis- tinguish, in the wliite substance of the cord, a great number of regions. Thus, the innermost portion of the anterior column (inferior in animals) is designated Tiirck's fascicvlus; the corre- sponding [portion of the pobterior column (superior) in tiie cervical region is GoU'» column; tlie lateral column is rigoroiisly limited by the grey cornua; while the regions around these latter «re named the anterior and posterior radicular zonex. In adhering to the facts of normal anatomy, it must be admitted that some of these dis- tinctions are in great part artificial. Nevertheless, there are found on the limits of certain. 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 Chauveau, A. (Auguste), 1827-1917; Arloing, S. (Saturnin), 1846-1911; Fleming, George, 1833-1901. New York : Appleton
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