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 . case of motor paralysis have beenenumerated in a preceding table. Without further explanation, we willnow proceed to consider each separatel3\ The Seat and Limits of the Paralysis.—To ascertain the exactlimits of the paralysis is important as an aid in the determination of theseat of the exciting lesion, be it cerebral or spinal. The peculiarities ofattitude and gait will often aid, in a rough and imperfect way, in decidingas
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 . case of motor paralysis have beenenumerated in a preceding table. Without further explanation, we willnow proceed to consider each separatel3\ The Seat and Limits of the Paralysis.—To ascertain the exactlimits of the paralysis is important as an aid in the determination of theseat of the exciting lesion, be it cerebral or spinal. The peculiarities ofattitude and gait will often aid, in a rough and imperfect way, in decidingas to the muscles that are chiefly affected; but a more detailed examina-tion of the separate muscles, by instructing the patient to pe?-form desig-nated movements that shall call different sets successively into action, willbe more accurate and scientific. To employ these tests in a skillfulmanner, however, the physician must first be thoroughly familiar withthe action of the various muscles, both individually and in conjunctionwith The Dynamometer of Matthieu. When taken in the hand and pressed, the two sides of the elliptical spring, a, i, are approximated, and the finger of the dial records the exactamount of force exerted upon the spring. One advantage of this instrument overall otherdevices of a simijar kind is, that the index does not return to zero, but remains at the pointindicating the greatest amount of force exerted by the hand of the patient. It is not ncces-sarj, therefore, to watch the index while the instrument is being used. Both hands shouldbe tested separately and the results noted in the record of each case. A modification of thisinstrument has been devised to test the power of the muscles of the lower extremity. In some forms of spinal diseases, where great accuracy in the diag-nosis and localization of the lesion is required, it maj^ become necessaryto test the motor condition of the various spinal segments by means of themuscles that are g
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