Hand-book of PhysiologyP. Blakiston, Son & Company, 1895 |
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acid action amount animals appears arteries auricle becomes bile blood blood-pressure blood-vessels body bone brain branches called canal capillaries capsule carbon carbon dioxide carbonic acid cartilage cavity cells centre cerebellum cerebral cerebrum chiefly clot coagulation colour colourless columnar connective tissue consists contains contraction cornea corpus corpuscles developed digestion dilatation duct elastic epiblast epithelium external ferment fibrin fibrous fluid ganglia ganglion glands glottis grey matter grms hæmoglobin heart heat inch increased intestine larynx layer liver lungs lymphatic medulla medulla oblongata mesoblast movements mucous membrane muscles muscular fibres nerve nerve-fibres nervous nitrogen nucleus optic organ outer ovum oxygen papillæ pass plexus portion posterior pressure produced proteid protoplasm pulmonary quantity respiration respiratory retina secretion seen sensation sheath side skin sodium solution spinal cord stimulation stomach structure substance surface temperature tion tube urea urine valves veins venous ventricle vesicle vessels walls
Popular passages
Page 36 - The ventricles of the brain and the central canal of the spinal cord are clothed with ciliated epithelium in the child, but in the adult this epithelium is limited to the central canal of the cord. The Cilia, or...
Page 769 - The glands of this part are of the tubulo-racemose type, branching repeatedly and extending deeply into the substance of the cervix. They are lined by columnar epithelium, and open on the ridges and furrows of the mucous membrane. They secrete a thick glairy mucus, resembling unboiled white of egg. The mucous membrane of the cavity of the body of the uterus...
Page 233 - ... and flaccid, but, at certain times, receive an unusually large quantity of blood, become distended and swollen by it, and pass into the state which has been termed erection. Such structures are the corpora cavernosa...
Page 499 - On its surface are very sensitive papilla: ; and around it is a small area or areoln of pink or dark-tinted skin, on which are to be seen small projections formed by minute secreting glands. Blood-vessels, nerves, and lymphatics are plentifully supplied to the mammary glands ; the calibre of the blood-vessels, as well as the size of the glands, varying very greatly under certain conditions, especially those of pregnancy and lactation.
Page 186 - Valves are not equally numerous in all veins, and in many they are absent altogether. They are most numerous in the veins of the extremities, and more so in those of the leg than the arm. They are commonly absent in veins of less than a...
Page 126 - A rapid and useful method of estimating the specific gravity of bloixl was invented by Roy. Drops of blood are taken and allowed to fall into fluids of known specific gravity. When the drop neither rises nor sinks in the fluid it is taken to be of the same specific gravity as that of the standard fluid. The reaction of blood is faintly alkaline and the taste saltish. Its temperature varies slightly, the average being 3 7 '8° C.
Page 740 - ... fringe. For similar reasons a red surface looks nearer than a blue one at an equal distance, because, the red rays being less refrangible, a stronger effort of accommodation is necessary to focus them, and the eye is adjusted as if for a nearer object, and therefore the red surface appears nearer. From the insufficient adjustment of the image of a small white object, it appears surrounded by a sort of halo or fringe. This phenomenon is termed Irradiation. It is from this reason that a white square...
Page 748 - ... 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.
Page 749 - ... the landscape through a small opening; more extensive when we look at the landscape through a window; and most so when our view is not confined by any near object. In all these cases the idea which we receive of the size of the field of vision is very different, although its absolute size is in all the same, being dependent on the extent of the retina. Hence it follows, that the mind is constantly cooperating in the acts of vision, so that at last it becomes difficult to say what belongs to mere...
Page 457 - When a current passes into the galvanometer the needles and, with them, the mirror, are turned to the right or left according to the direction of the current. The...