Lectures on nervous diseases from the standpoint of cerebral and spinal localization, and the later methods employed in the diagnosis and treatment of these affections . to hastily summarize a few of the moreimportant facts in nervous symptomatology. Not only are some of the tests, described later, complex in them-selves, and therefore difficult of comprehension, but they would be abso-lutely useless in practice if the clinical bearing of each were not clearlycomprehended. For example, a physician who has acquired a smatter-ing of nervous symptomatology- may be called upon to examine a patient
Lectures on nervous diseases from the standpoint of cerebral and spinal localization, and the later methods employed in the diagnosis and treatment of these affections . to hastily summarize a few of the moreimportant facts in nervous symptomatology. Not only are some of the tests, described later, complex in them-selves, and therefore difficult of comprehension, but they would be abso-lutely useless in practice if the clinical bearing of each were not clearlycomprehended. For example, a physician who has acquired a smatter-ing of nervous symptomatology- may be called upon to examine a patientwho gives evidences of impairment of motor power in some part of his SPECIAL SYMPTOMS OF NERVOUS DEEANGEMENT. 47 bod\-. This paralysis may be due t(i some trouble eithir in the brain ofhis patient, his spinal cord, or in some special nerve. If in the brain, thephysician is called upon to decide (for himself at least) whether it is sit-. FiG. 19.—A Diagram Illustrating the Developjient of the Different Systems ofFibres IN THE Spinal Cord. (After Flechsig.) A, section at level of 3d cervical nerves ; B,at level of oth cervical; C, at level of 6th dorsal; D, at the level of 4th lumbar nerves. 1, prin-cipal mass of anterior columns ; 2, Burdachs columns : 3, lateral columns ; 4, lateral bound-ary of gray substance ; .5, columns of GoU ; H, direct cerebellar columns ; 7, crossed pyramidalcolumns ; 7, TUrcks columns ; v, anterior roots. Note that Tiircks columns disappear inD ; that GoUs columns increase in size from below upward; that the direct cerebellar col-umns appear in C, and increase in size in B and A ; that the crossed pyramidal columnsreach the surface in D; and that the shape of the gray substance differs in all the numerals employed in the cuts indicate the order of development of the various partsdesignated. It will be seen that the motor-tracts of the cord are the last to attain their com-plet
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