. Practical electricity in medicine and surgery. l groove, but can be best stimulated at the lower thirdof the humerus, where it may be pressed against the bone. Itsstimulation causes contraction in the pronator quadratus and 176 PRACTICAL ELECTRICITY IN MEDICINE AND SURGERY. teres, flexor carpi radialis, palmaris longus, flexor sublimis andprofundus, the muscles of the ball of the thumb, and the threefirst lumbricales. Effects: Strong pronation of the forearm,flexing the hand toward the radial side, flexing the fingers, andopposition of the thumb. In the forearm the median is found superficia
. Practical electricity in medicine and surgery. l groove, but can be best stimulated at the lower thirdof the humerus, where it may be pressed against the bone. Itsstimulation causes contraction in the pronator quadratus and 176 PRACTICAL ELECTRICITY IN MEDICINE AND SURGERY. teres, flexor carpi radialis, palmaris longus, flexor sublimis andprofundus, the muscles of the ball of the thumb, and the threefirst lumbricales. Effects: Strong pronation of the forearm,flexing the hand toward the radial side, flexing the fingers, andopposition of the thumb. In the forearm the median is found superficially one inchabove the wrist-joint between the tendons of the flexor radialisand the palmaris longus. Effects: Abduction of the thumbwith strong spasm and slight flexion of the first phalanges of theindex and middle fingers, and generally of the ring-finger(Fig. 153). The flexor sublimis and profundus digitorum cannot bestimulated alone through their nerves, but can be directly causedto contract at the points marked in Fig. 154. The flexor carpi. Fig. 133. -Effect of Stimulation of Median Nerve in the Forearm. radialis and palmaris longus can be stimulated at points indi-cated. * The flexor radialis and palmaris longus can best bestimulated through the nerves at the points shown in the figure(154). The branches to the pronator quadratus and the flexorpollicis longus cannot be stimulated owing to their deep ulnar nerve can be stimulated throughout its coursefrom the axilla to the elbow, but the best point at which to applythe electrode is the groove between the olecranon and the internalcondyle of the humerus. Faradic stimulation of the nerve atthis point produces pain in the area of distribution of the branchto the palmaris longus and the branches to the dorsal and volarsurfaces of the hands, as well as contractions of the flexor carpiulnaris, flexor profundus, palmaris brevis, the interossei, lumbri-cales, adductor pollicis, and the little-finger muscles. MOTOR POI
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectelectri, bookyear1890
