A Text-book of PhysiologyF. A. Davis Company, 1904 - 563 pages |
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absorption action albumin alkaline amount animal apparatus arteries asphyxia auricle becomes bile blood blood-pressure blood-vessels body bronchi capillaries carbonic acid cardiac causes cavity cells cerebellum chemical chyle circulation coagulation color composed contains contraction digestion dilatation duct elastic epithelium excitation expiration external ferment fluid functions ganglion gastric juice glands glottis glycogen hæmoglobin heart heat inches increase inspiration intestine irritation kidneys known LANDOIS larynx latter layer liquid liver lungs lymph lymphatics medulla medulla oblongata milk millimeters motor movements mucous membrane muscle muscular fibers nerve-fibers nerves nervous nitrogen normal nucleus occurs organ oxygen pancreatic pass pepsin peptones pharynx portion posterior pressure produced proteid protoplasm pulmonary quantity red corpuscles reflex respiration respiratory salts secretion sensory skin sodium solution spinal cord stimulation stomach substance surface systole temperature thoracic thyroid tion tissues tube urea urine vagus valves vasoconstrictor vasodilators vasomotor veins venous ventricle vessels walls
Popular passages
Page 271 - To circulate the blood round the body" or (in more detail) "To convey oxygen from the lungs to the tissues and carbon dioxide from the tissues to the lungs...
Page 147 - Below the prism is an achromatic eyepiece, having an adjustable slit between the two lenses; the upper lens being furnished with a screw motion to focus the slit. A side slit capable of adjustment admits when required a second beam of light from any object whose spectrum it is desired to compare with that of the object placed on the stage of the microscope. This second beam of light strikes against a very small prism, suitably placed inside the apparatus, and is reflected up through the compound...
Page 489 - The tongue receives three nerves: one of motion, the hi/poglossal, which animates the muscles; and two other sensory branches — the lingual branch of the glosso-pharyngeal and the lingual branch- of the trigeminus. The former of the latter two branches spreads in the mucous membrane at the base and edges of the tongue: the latter is distributed to the mucous membrane of the anterior twothirds of the tongue. The branches of the glosso-pharyngeal are especially concerned in sensations of bittern-ess,...
Page 344 - 087 feet Hence the work developed during an entire stroke is "087 xp foot-pounds. Now this is developed by the descent from 0° to — t" of the quantity of heat necessary to melt a cubic foot of ice ; that is, by 4925 thermic units, the unit being the quantity of heat required to raise a pound of water from 0° to 1* centigrade. Next we can obtain another expression for the same quantity of work ; for, by the tables deduced in the preceding...
Page 149 - Light entering the aperture near E strikes against the right-angled prism which we have mentioned as being placed inside the apparatus, and is reflected up through the slit belonging to the compound prism. If any incandescent object is placed in a suitable position with reference to the aperture, its spectrum will be obtained, and will be seen on looking through it.
Page 149 - Remove a, and open the slit by means of the milled head, not shown in cut, but which is at right angles to d d. When the slit is sufficiently open, the rest of the apparatus acts like an ordinary eyepiece, and any object can be focussed in the usual way. Having focussed the object, replace a, and gradually close the slit till a good spectrum is obtained. The spectrum will be much improved by throwing the object a little out of focus. Every part of the spectrum differs a little from adjacent parts...
Page 339 - The Specific Heat of a body is the ratio of the quantity of heat required to raise that body one degree to the quantity required to raise an equal weight of water one degree.
Page 215 - I inserted into it a brass pipe whose bore was one-sixth of an inch in diameter ; and to that, by means of another brass pipe which was fitly adapted to it, I fixed a glass tube, of nearly the same diameter, which was nine feet in length : then untying the ligature on the artery, the blood rose in the tube eight feet three inches perpendicular above the level of the left ventricle of the heart...
Page 215 - ... inches, and have there for a time the same vibrations up and down at and after each pulse, as it had, when it was at its full height; to which it would rise again, after forty or fifty pulses.
Page 352 - Heated. (2) that irritation — mechanical, chemical, or electrical — causes the phenomena to be present, and (3) that the part of the nervous system exhibiting these peculiarities be circumscribed in extent. After numerous observations and experiments it was found that pressure upon the tuber cinereum with a pledget of cotton, or even slight puncture, increased the normal respirations to the point of polypncca.