. A treatise on nervous and mental diseases, for students and practitioners of medicine. Jdvenile Typio. Infantile Facial Type. Peroneal Type. Muscles of shoulder Facial muscles of ex- Muscles of the leg, and upper arm: pression. then the hand and Pectorals. In shoulder and arm forearm. Trapezius. muscles these are in- Rhomboids. tact: of forearm. of hand andfingers. Supinator longus. Triceps. Muscles of lower ex- tremity : Glutsei. Quadriceps. Peronei.

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. A treatise on nervous and mental diseases, for students and practitioners of medicine. Jdvenile Typio. Infantile Facial Type. Peroneal Type. Muscles of shoulder Facial muscles of ex- Muscles of the leg, and upper arm: pression. then the hand and Pectorals. In shoulder and arm forearm. Trapezius. muscles these are in- Rhomboids. tact: of forearm. of hand andfingers. Supinator longus. Triceps. Muscles of lower ex- tremity : Glutsei. Quadriceps. Peronei. Tibialis anticus. SPINAL CORD AND MEDULLA OBLONGATA. 237 Of these f<5iir types, it is generally believed that the hand typerepresents the spinal form of the disease, the juvenile and infantilefacial types the muscular form, whilst the pathology of the peronealtype is undetermined. But it must be carefully remembered thatthese statements are only true in a general way, and that our presentknowledge of the disease is insujfficient to enable us to base a positive Fig. 130. Fig.

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