. Medical diagnosis for the student and practitioner. or longusescape (Erbs type). Complete lesions involve a total motor and sensoryparalysis of the arm, and there is a lower arm type in which forearm exten-sion and the use of the hand are lost, the triceps, flexors of the wrist, pronatorsextensors and flexors of the fingers being involved. Ocular signs indicatinginvolvement of the sympathetic are frequent. SUMMARY OF LESIONS OF CERTAIN SPINAL NERVES.—Occipital.—Neuralgia, anesthesia. Posterior Thoracic.—Arm cannot be raised above horizontal and scapula (serratus magnus). A
. Medical diagnosis for the student and practitioner. or longusescape (Erbs type). Complete lesions involve a total motor and sensoryparalysis of the arm, and there is a lower arm type in which forearm exten-sion and the use of the hand are lost, the triceps, flexors of the wrist, pronatorsextensors and flexors of the fingers being involved. Ocular signs indicatinginvolvement of the sympathetic are frequent. SUMMARY OF LESIONS OF CERTAIN SPINAL NERVES.—Occipital.—Neuralgia, anesthesia. Posterior Thoracic.—Arm cannot be raised above horizontal and scapula (serratus magnus). Anterior Thoracic.—Inability to adduct arm (pectoralis major). Musculo-cutaneous.—Loss of elbow flexion power (biceps, brachialisanticus). Anesthesia inner border of forearm. Circumflex.—Loss of outward rotation and elevation of arm (deltoid,teres minor), third head of triceps. Suprascapular.—Impaired outward shoulder rotation and elevation. Musculo-spiral and Radial.—Paralysis from lead, arsenic or alcohol, CRANIAL NERVE LESIONS I2IQ. Fig. 613.—Drop wrist. tumor and crutch pressure. Traumatism or whatever cause, is commonand leads to the characteristic dropping of the wrist from extensor paralysis{drop wrist) so commonly seen in clinics. A factor in differential diagnosisis the involvement or non-involvement of the supinator longus which isusually spared in lead poisoning. The triceps and anconeus are paralyzed,extension of forearm lost and there is wasting of the back of the arm. Median.—Abduction of thumb and flexion of thumb and first and secondfingers are lost. Thenar and anterior forearmatrophy is usually marked. If the forearm beflexed pronation is impossible. The thumb andindex finger are approximated and there is paraly-sis of the abductor pollicis. Ulnar Nerve.—Impaired abduction and flexionof hand (flexor carpi ulnaris and part of flexorsublimis digitorum) and wasting of ball of littlefinger and interosseous spaces are present and onecannot cup t
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdiagnos, bookyear1922
