Modern surgery, general and operative . Fig. 484.—Paralysis of musculospiral nerveafter fracture of the humerus (wrist-drop);but when fingers have been flexed into palm, a,they can be extended, h, at first interphalangealjoints by lumbricals and interossei, which aresuppHed by the ulnar and median nerves (Erich-sen).. Fig. 485.—Distribution of sensory nerveson the backs of the fingers: r, Musculospiralor radial nerve; u, ulnar nerve; m, mediannerve (Krause). of the first and second fingers cannot be voluntarily flexed. The correspondingphalanges of the third and fourth fingers can be flexed, t
Modern surgery, general and operative . Fig. 484.—Paralysis of musculospiral nerveafter fracture of the humerus (wrist-drop);but when fingers have been flexed into palm, a,they can be extended, h, at first interphalangealjoints by lumbricals and interossei, which aresuppHed by the ulnar and median nerves (Erich-sen).. Fig. 485.—Distribution of sensory nerveson the backs of the fingers: r, Musculospiralor radial nerve; u, ulnar nerve; m, mediannerve (Krause). of the first and second fingers cannot be voluntarily flexed. The correspondingphalanges of the third and fourth fingers can be flexed, this being accomplishedby the unparalyzed half of the deep flexor. Flexion of the first pha-langes is still possible, as it is accomplished by means of the interossei. Theextensor action of the interossei muscles upon the middle and distal phalanges,being unopposed, may eventually cause subluxation. The sensory distri-bution of the median nerve is shown in Figs. 483 and 485-487. It is thesensorv^ nervx of the radial side of the palm, the front of the thumb, the firstand second fingers and half of the third finger, and the back of the last phalanxof the index and the middle finger (Gowers). The sensory changes aftermedian paralysis are quite variable—sometimes widespread and complete,at other times t
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishe, booksubjectsurgery
