Nervous and mental diseases . THE MUSCULAR SYSTEM. 35 of the great gluteal muscle, when the patient is erect or prone, are followedby contractions in corresponding segments of that muscle, and a tap nearthe anterior superior spinous process starts the tensor Jacioz latce knee-jerk, or patellar reflex, being easily examined and frequently modi-fied by disease, is one of the most important of the muscle reflexes. Itis elicited generally by having the patient cross one knee over the otherwhile sitting. The under limb, with the knee at a right angle, shouldsupport the upper, which gent


Nervous and mental diseases . THE MUSCULAR SYSTEM. 35 of the great gluteal muscle, when the patient is erect or prone, are followedby contractions in corresponding segments of that muscle, and a tap nearthe anterior superior spinous process starts the tensor Jacioz latce knee-jerk, or patellar reflex, being easily examined and frequently modi-fied by disease, is one of the most important of the muscle reflexes. Itis elicited generally by having the patient cross one knee over the otherwhile sitting. The under limb, with the knee at a right angle, shouldsupport the upper, which gently rests over it with all muscles relaxed. Asmart, quick blow with an object of some ounces weight, as with the backof a thin book or the ulnar border of the hand, upon the patellar ligamentor just above the patella, is followed by a contraction of the anterior thigh-muscles, causing the suspended foot to move forward an inch or two. Ifthe patient is in bed, the limb to be examined may be lightly placed overits extended fello


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