American Journal of Physiology, Volumen14American Physiological Society, 1905 Volumes for 1898-1941, 1948-56 include the Society's proceedings (primarily abstracts of papers presented at the 10th-53rd annual meetings, and the 1948-56 fall meetings). |
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Términos y frases comunes
0.7 per cent accelerator action active albumin amount animal Archiv augmentor auricle beats blood pressure calcium chloride cardiac catalase cells cent solution chemical colloid condition connective tissue contained contractile copper curve cystin cystinuria determined dextrose diastole dissolved doses edestin effect enzyme experiments geotropism gesammte Physiologie gill ventricles globulin glycogen heart strips hydrogen peroxide immersed increase inhibition inhibitory fibres injection interrupted current intestine ions Journal of physiology kilo liver magnesium sulphate minutes Neuberg nitrogen normal observed obtained Ox marrow oxidation oxygen potassium chloride potassium contraction precipitate preparations produced protein quantity rabbit reaction relaxation renal veins respiration rhythm rhythmic ricin Ringer saline salts sartorius sartorius muscle sodium chloride sodium chloride solution soluble sounds stimulation subcutaneous substance sugar sulphur systemic ventricle Table tension coefficient tion tonus toxic tracings tube tumors uric acid urine ventricular visceral nerve weight zinc
Pasajes populares
Página 339 - ... other noises; — who knows, I say, but that it may be possible to discover the motions of the internal parts of bodies, whether animal, vegetable or mineral, by the sound they make; that one may discover the works performed in the several offices and shops of a man's body, and thereby discover what instrument or engine is out of order, what works are going on at several times and lie still at others and the like.
Página 413 - Eigenmann ( :0o) on the blind fishes of the genera Chologaster and Amblyopsis, which were shown to be sensitive to light, presumably through the skin. No one, however, has tested this matter very fully for fishes, and it therefore seemed to me desirable to extend this line of work on these more primitive vertebrates. At my suggestion Mr. JA Long, while working at the Biological Laboratory of the United States Bureau of Fisheries at Wood's Hole, Mass., carried out a series of experiments with this...
Página 94 - It can very readily be shown that the normal living condition of the muscle is essential, for anaesthesia produced by ether vapor destroys the potassium contraction as quickly as it destroys the ability of the muscle to respond to electrical excitation. Furthermore, exhaustion of the muscle in 0.7 per cent saline by repeated electrical stimulation prevents the action of the potassiumOnly a few experiments were made in this respect, but they indicated that the diminution in the height of the potassium...
Página 176 - Preliminary report on the presence of an immune body in the blood of mice spontaneously recovered from cancer (adeno-carcinoma, JENSEN) and the effect of this immune serum upon growing tumors in mice infected with the same material.
Página 133 - A diminution of urine in animals between 120 and 180 grams, or approximately 70-125 days old, seems to be a normal phenomenon rather than mere statistical variation. Whether or not this is a phenomenon of adolescence needs further investigation. It must be noted, however, that puberty in the rat begins at about seventy days after birth. The smaller animals excrete a relatively greater quantity of urine than the larger animals.
Página 285 - Jacoby 1 in particular. In reviewing this work, Oppenheimer2 wrote: "Es ist also wieder eines der letzten ' Toxalbumine ' verschwunden, und damit dürfte wohl dieser Begriff auch nur noch historisches Interesse haben. Er hat in der Entwicklung dieser Frage seine grosse Bedeutung gehabt, besonders indem er zuerst darauf hinwies, dass diesen Giften ganz andere Eigenschaften zukommen, als den Krystalloiden Giften ; aber nun dürfte es wohl an der Zeit sein, ihm ein ehrenvolles Begrabniss zu bereiten,...
Página 403 - York.] NEARLY three years ago I exhibited, at the first meeting of the Society for Experimental Biology and Medicine, a cage designed for metabolism experiments, especially on dogs. A year later photographs of the same cage were shown at a meeting of the American Physiological Society. The cage referred to was similar to the one employed in my first metabolism experiments, which were carried out in the Sheffield...
Página 451 - ... are with chemicals that are not open to this objection. It would seem probable that those agents which, when used with a solution of sodium chloride, develop a rhythm are not necessary rhythm producers, but simply substances that do not interfere with the action of the sodium 450 45 ! CONCLUSION.
Página 358 - Mathews' 1 and others' experiments where toxic effects are obtained by surrounding the eggs with solutions of the toxic agent. Stoccard2 found, by placing the eggs in a lithium solution, that if the eggs were removed in three, four, or five hours, no toxic effects were produced ; but after that time characteristic effects resulted. • CONCLUSIONS. The membrane of the eggs of Fundulus heteroclitus is practically impermeable to salts and water during the first six or eight hours, ie eggs placed in...
Página 423 - ... centrifuge so that the capillary pointed away from the axis of the machine. After strong rotation the capillary was examined under the microscope. The organisms were invariably found with anterior ends directed towards the closed outer end of the tube. It is therefore certain that passive paramcecia would fall head end down, and that their negative geotropism is the result of an active process on the part of the animals. Jensen's view in this respect is fully confirmed, and the mechanical theory...