. Directions for laboratory work in physiology for the use of medical students. Physiology. MOTOR POINTS ON THE ARM. Apparatus.—Connect two dry cells and a key to the primary coil of an induction apparatus; and connect a large copper plate (the indifferent electrode), to the less effi- cient pole of the secondary coil, and a small brass electrode (the active electrode), to the more efficient Fig. i6. Apparatus for unipolar excitation of liuman nerves. A, battery; B, mercury key; C, primary coil; D, secondary coil; E, copper plate iised as indifferent electrode ; F, exciting electrode. E
. Directions for laboratory work in physiology for the use of medical students. Physiology. MOTOR POINTS ON THE ARM. Apparatus.—Connect two dry cells and a key to the primary coil of an induction apparatus; and connect a large copper plate (the indifferent electrode), to the less effi- cient pole of the secondary coil, and a small brass electrode (the active electrode), to the more efficient Fig. i6. Apparatus for unipolar excitation of liuman nerves. A, battery; B, mercury key; C, primary coil; D, secondary coil; E, copper plate iised as indifferent electrode ; F, exciting electrode. Experiment.—Locate the motor points on the left arm first. By the motor point is meant the spot at which the motor nerve enters the muscle, or where a nerve is most accessible to the current. P'asten the copper plate by an elastic band on the back of the left hand, putting a wet. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lombard, Warren P. (Warren Plimpton), 1855-1939. Ann Arbor, G. Wahr
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectphysiology, bookyear1
