. A class book of (elementary) practical physiology : including histology, chemical and experimental physiology. Physiology. 246 CIRCULATION. Observe that contractions follow each other in the order of sinus, auricles, ventricle, and bulb. The ventricle becomes pale and rounded at the systole, each section of the heart diminishing in volume as it empties itself. Record the movements by GaskelVs suspension method. f O B =3 P c § A -^ ,y Jc A % H ^ r^. Fifi. 50. Frog-heart recorder. A Aluminium rod, attached to the hinge H and the recording arm. The heart is connected to it by the hanging thread
. A class book of (elementary) practical physiology : including histology, chemical and experimental physiology. Physiology. 246 CIRCULATION. Observe that contractions follow each other in the order of sinus, auricles, ventricle, and bulb. The ventricle becomes pale and rounded at the systole, each section of the heart diminishing in volume as it empties itself. Record the movements by GaskelVs suspension method. f O B =3 P c § A -^ ,y Jc A % H ^ r^. Fifi. 50. Frog-heart recorder. A Aluminium rod, attached to the hinge H and the recording arm. The heart is connected to it by the hanging thread. S Counter- poising spring adjusted by the slider on the vertical rod. F Wooden base clamped to the bracket on the pillar P of the general stand. C Loaded cork frog plate. B Side bar carrying T an electric style. A fine silk thread about 12cm long, moistened with normal saline, has a single loop made upon it; this is slipped over the apex and is tied so as to include the smallest possible portion of the tip. This can be done without much difficulty if the ligature be slowly tightened at first around the ventricle until it slips to the exact spot at which it is to be fastened, when it should be drawn tight suddenly. Secure with a second knot. Then place the frog with the frog plate upon the board of the. 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 Birch, De Burgh. Philadelphia : P. Blakiston's Son
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectphysiology, bookyear1
