Manual of physiologyBlanchard and Lea, 1857 - 584 páginas |
Contenido
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Términos y frases comunes
absorbed absorption action albumen animals appears arteries auricles bile blood blood-corpuscles blood-vessels body brain branches canal capillaries carbonic acid cavity cells cerebellum cerebral changes chyle chyme circulation coagulation color columns connected contain contraction corpuscles digestion dilatation ducts elastic embryo epithelium excited experiments external fibres fibrine filaments force functions ganglia ganglion gastric fluid glands glottis heart impressions increased influence intestinal canal intestine irritation lacteals larynx layer liver lungs lymph lymphatic matter medulla oblongata mind minute mode motor movements mucous membrane muscles muscular nerve-fibres nervous centres nervous system nuclei nutrition observed optic organs orifice ovum oxygen papillæ particles pass peculiar pneumogastric pneumogastric nerves portion posterior probably produced quantity respiration respiratory retina secretion sensation skin spinal cord spinal nerves stomach substance supplied surface sympathetic temperature tion tissue trunk tube uric acid urine valves vascular veins venous ventricle vesicle vessels walls
Pasajes populares
Página 438 - Even the image of our hand, while used in touch, is seen inverted. The position in which we see objects, we call therefore the erect position. A mere lateral inversion of our body in a mirror, where the right hand occupies the left of the image, is indeed scarcely remarked : and there is but little discordance between the sensations acquired by touch in regulating our movements by the image in the mirror, and those of sight, as, for example, in tying a knot in the cravat.
Página 244 - Of these, the most important are: 1. A right state and composition of the blood, from which the materials for nutrition are derived. 2. A regular and not far distant supply of such blood. 3. A certain influence of the nervous system. 4. A natural state of the part to be nourished.
Página 3 - Students. A new edition, revised and improved. In one very large and handsomely printed royal 12mo. volume, of about one thousand pages, with 374 wood-cuts.
Página 6 - A new edition, with numerous illustrations ; together with a General History of the Horse ; a Dissertation on the American Trotting Horse; how trained and jockeyed; an Account of his Remarkable Performances; and an Essay on the Ass and the Mule.
Página 382 - ... therefore of the nature of sympathetic fibres. The parts which are supplied with motor power by the sympathetic nerve continue to move, though more feebly than before, when they are separated from their natural connections with the rest of the sympathetic system, and wholly removed from the body.
Página 144 - ... forming some of the carbonic acid and water given off from the skin, and in combining with sulphur and phosphorus to form part of the acids of the sulphates and phosphates excreted in the urine, and probably, also, from the experiments of Dr.
Página 352 - Even in early childhood, before education can be imagined to have exercised any influence on the mind, children exhibit various dispositions, each presents some predominant propensity, or evinces a singular aptness in some study or pursuit ; and it is a matter of daily observation that every one has his peculiar talent or propensity. But it is difficult to imagine how this could be the case, if the manifestation...
Página 438 - Hence it is, also, that no discordance arises between the sensations of inverted vision and those of touch, which perceives everything in its erect position; for the images of all objects, even of our own limbs, in the retina, are equally inverted, and therefore maintain the same relative position. Even the image of our hand, while used in touch, is seen inverted. The position in which we see objects, we call therefore the erect position. A mere lateral inversion of our body in a mirror, where the...
Página 320 - If in a frog the three posterior roots of the nerves going to the hinder extremity be divided on the left side, and the three anterior roots of the corresponding nerves on the right side, the left extremity will be deprived of sensation, the right of motion. If the foot of the right leg, which is still endowed with sensation but not with the power of motion, be cut off, the frog will give evidence of feeling pain by movements of all parts of the body except the right leg itself, in which he feels...
Página 136 - ... shown. After ordinary expiration, such as that which expels the breathing air, a certain quantity of air remains in the lungs, which may be expelled by a forcible and deeper expiration : this he terms reserve air. But, even after the most violent expiratory efl'ort, the lungs are not completely emptied; a certain quantity always remains in them, over which there is no voluntary control, and which may be called residual air.