A manual of human physiology, including histology and microscopical anatomy, with special reference to the requirements of practical medicine . Fig. 52. Scheme of Brondgeests sphygmograph, on the principle of Upham and Mareystambours—S, S, receiving and recording (S, S) tambours with writing-levers,Z and Z; K, K, conducting tubes : p over heart, p over a distant illustration also shows the principle of Mareys cardiograph. thin metal tubes, whose free-ends are connected with caoutchouc tubes,K and K. All the four metallic vessels are covered with an elasticmembrane. On S and S are f
A manual of human physiology, including histology and microscopical anatomy, with special reference to the requirements of practical medicine . Fig. 52. Scheme of Brondgeests sphygmograph, on the principle of Upham and Mareystambours—S, S, receiving and recording (S, S) tambours with writing-levers,Z and Z; K, K, conducting tubes : p over heart, p over a distant illustration also shows the principle of Mareys cardiograph. thin metal tubes, whose free-ends are connected with caoutchouc tubes,K and K. All the four metallic vessels are covered with an elasticmembrane. On S and S are fixed two knob-like pads, p and p,which are applied to the pulsating arteries, and the metal arcs, B and LANDOIS ANGIOGRAPH. 133 B, retain them in position. On the other tambours are arranged thewriting levers, Z and 71. Pressure on the one tambour necessarilycompresses the air and makes the other, with which it is connected,expand, so as to move the writing-lever. This arrangement does notgive absolutely exact results; still, it is very easily used and is con-venient. In Fig. 52 a doublearrangement is shown, where-by one instrument, B,
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectphysiology, bookyear1
