The Elements of Physiology and Hygiene: A Text-book for Educational InstitutionsD. Appleton, 1878 - 485 páginas |
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Términos y frases comunes
action afferent afferent nerve amount amyloids animal aorta arteries auricle become blood body bone brain called capillaries carbonic acid cartilage cause cavity cells cent cerebral chyle coagulation cochlea colorless corpuscles connective tissue constitution contains contraction convex cubic delicate digestion disease duct effect elastic epithelium excretion exercise external fibrin fluid front give rise glands grains heart heat Hence hepatic hepatic vein impure inch intestine irritation kidneys lacunæ layer lens less levers ligaments liver lungs medulla oblongata ment mental movements mucous membrane muscles muscular fibres nerve-fibres nervous nitrogen nutritive optic nerve organic matter oxygen papillæ pass posterior produced proteid pulmonary quantity red corpuscles respiration retina scala media SECTION seen sensations sensory side skin solid spinal cord structure substance supply surface temperature tion trunk tube valves veins vena cava venous ventricle vessels vibrations walls
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Página 33 - Imperious Caesar, dead and turn'd to clay, Might stop a hole to keep the wind 'away: O, that that earth which kept the world in awe Should patch a wall to expel the winter's flaw!— But soft!
Página 312 - It may be laid down as a rule, that if any two mental states be called up together, or in succession, with due frequency and vividness, the subsequent production of the one of them will suffice to call up the other, and that whether we desire it or not.
Página 5 - A text-book for educational institutions, and a valuable elementary work for students of medicine. The greater portion is from the pen of Professor Huxley, adapted by Dr. Youmans to the circumstances and requirements of American education. The eminent claim of Professor Huxley's " Elementary Physiology " is, that, while up to the times, it is trustworthy in its presentation of the subject ; while rejecting discredited doctrines and doubtful speculations, it embodies the latest results that are established,...
Página 360 - Invariably it will be found on examination that a truly scrofulous disease is caused by a vitiated air, and it is not always necessary that there should have been a prolonged stay in such an atmosphere. Often a few hours each day is sufficient...
Página 311 - ... of anything but the sense of the words in the book, — in other words, they are reflex acts. " The reflex actions proper to the spinal cord itself are natural, and are involved in the structure of the cord and the properties of its constituents. By the help of the brain we may acquire an affinity of artificial reflex actions ; that is to say, an action may require all our attention and all our volition for its first or second or third performance, but by frequent repetition it becomes in a manner...
Página 273 - A. came down stairs into the drawing-room, which she had quitted only a few minutes before, and on entering the room she saw her husband, as she supposed, standing with his back to the fire. As he had gone out to take a walk about half an hour before, she was surprised to see him there, and asked him why 'he had returned so soon. The figure looked fixedly at her with a serious and thoughtful expression of countenance, but did not speak. Supposing that his mind was absorbed in thought, she sat down...
Página 273 - ... not been near the house at the time. A similar illusion, which excited no particular notice at the time, occurred to Mrs. A. when residing at Florence, about ten years before, and when she was in perfect health. When she was undressing after a ball, she heard a voice call her repeatedly by name, and she was at that time unable to account for it.
Página 312 - There is a story, which is credible enough, though it may not be true, of a practical joker, who, seeing a discharged veteran carrying home his dinner, suddenly called out, 'Attention!' whereupon the man instantly brought his hands down, and lost his mutton and potatoes in the gutter. The drill had been thorough, and its effects had become embodied in the man's nervous structure...