Nervous and mental diseases . ••- -^ Fig. 115.—Drop-foot and deformities in alcoholic multiple Fig 116.—Gait in multiple neuriti showing the high knee-action and the dangling foot descending byits toe and outer border. patient in such cases in walking brings the heel first to the groundwith the foot everted and dorsally flexed. When the thigh-extensors are also affected and the muscles at the rootof the limb are weakened, the use of the member becomes well-nighimpossible. A paresis of the extensors of the knee is often associatedwith that of the leg muscles in alcoholic polyneuritis
Nervous and mental diseases . ••- -^ Fig. 115.—Drop-foot and deformities in alcoholic multiple Fig 116.—Gait in multiple neuriti showing the high knee-action and the dangling foot descending byits toe and outer border. patient in such cases in walking brings the heel first to the groundwith the foot everted and dorsally flexed. When the thigh-extensors are also affected and the muscles at the rootof the limb are weakened, the use of the member becomes well-nighimpossible. A paresis of the extensors of the knee is often associatedwith that of the leg muscles in alcoholic polyneuritis. As aboA^e indicated,the loss of power may be trifling or absolute. While the muscle-groupsenumerated are most affected, their opponents also lose power, but inless degree. The loss of synergy alone wTould account for much of theirweakness, but the neuritic process does not entirely spare them, and insevere cases of long standing they also waste. MULTIPLE NEURITIS. 313 The Upper Extremities.—The distal segments of the upper ex-tremities, as in the lower limbs, are principally involved. The muscl
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