Nervous and mental diseases . evolutionary scale,—namely, circum-duction of the upper limb and the opposition of the thumb to thefingers. If the morbid process be one of involution, we might naturallyexpect such a program. It results in flattening the palm, and thethumb falls back into the same plane with the other digits, producing 412 DISEASES OF THE CORD PROPER. the ape hand (Fig. 156). The interossei and lumbricales are alsoaifected, and again most on the radial side of the hand. Furrowsbetween the metacarpals mark the loss of the small muscles, and theintegument hangs loose and redundant
Nervous and mental diseases . evolutionary scale,—namely, circum-duction of the upper limb and the opposition of the thumb to thefingers. If the morbid process be one of involution, we might naturallyexpect such a program. It results in flattening the palm, and thethumb falls back into the same plane with the other digits, producing 412 DISEASES OF THE CORD PROPER. the ape hand (Fig. 156). The interossei and lumbricales are alsoaifected, and again most on the radial side of the hand. Furrowsbetween the metacarpals mark the loss of the small muscles, and theintegument hangs loose and redundant with numerous folds andwrinkles. The bones are entirely denuded of muscular covering insevere cases. A persistence of subcutaneous fat sometimes obscuresthe muscular atrophy. In late cases there is a marked tendency toclawing of the fingers, from the involvement of the small muscles, sothat the first phalanges are extended, the second and third sharplyflexed (Fig. 156). They may be rigidly and spastically fixed, all vol- \.
Size: 1096px × 2279px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, booksubjectmentalillness, booksubjectnervoussys
