Nervous and mental diseases . ECIAL SPINAL NERVES. 301 unusually extensive distribution of the ulnar and radial nerves. It ismost pronounced on the volar surface of the index, but may extend overthe area shown in figure 107. The ulnar nerve originates from the lowest cervical and the firstdorsal nerves, and supplies in the forearm the ulnar flexor of the wrist,the two inner divisions of the deep flexor of the fingers, and all the smallmuscles of the hand except those innervated by the median—namely,the dorsal and palmar interossei, the muscles of the hypothenar eminence,and the third and fourt
Nervous and mental diseases . ECIAL SPINAL NERVES. 301 unusually extensive distribution of the ulnar and radial nerves. It ismost pronounced on the volar surface of the index, but may extend overthe area shown in figure 107. The ulnar nerve originates from the lowest cervical and the firstdorsal nerves, and supplies in the forearm the ulnar flexor of the wrist,the two inner divisions of the deep flexor of the fingers, and all the smallmuscles of the hand except those innervated by the median—namely,the dorsal and palmar interossei, the muscles of the hypothenar eminence,and the third and fourth lumbricales. It also supplies the adductor andone-half of the short flexor of the thumb. Its cutaneous branches sup-ply the ulnar border of the hand, front and back, including all of thelittle finger, most of the ring finger, and a varying portion of the middlefinger, largest on its dorsum. The ulnar is (1) rarely injured above the elbow, excepting as apart of a more general injury to the brachial plexus. (2) At the elbow.
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Keywords: ., bookcentury1900, bookdecade1910, bookid, booksubjectnervoussystem
