Cellular Pathology: As Based Upon Physiological and Pathological Histology. Twenty Lectures Delivered in the Pathological Institute of Berlin During the Months of February, March and April, 1858R. M. De Witt, 1860 - 528 páginas |
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Cellular Pathology as Based Upon Physiological and Pathological Histology ... Rudolf Virchow Visualização integral - 1860 |
Cellular Pathology as Based Upon Physiological and Pathological Histology ... Rudolf Virchow Visualização de excertos - 1880 |
Cellular Pathology as Based Upon Physiological and Pathological Histology ... Rudolf Virchow Visualização de excertos - 1978 |
Palavras e frases frequentes
300 diameters acetic acid acid amyloid appearance arteries atheromatous become blastema blood blood-corpuscles body bone bone-corpuscles canal cancer capillary cartilage cavity cells cellular elements coagulation colour colourless corpuscles condition connective tissue constituents course disease dyscrasia ependyma epidermis epithelial epithelium essentially example exist external extremely exudation fasciculi fatty degeneration fibres fibrine fluid follicles formation ganglion-cells gradually granular granules histological inasmuch individual inflammation inflammatory intercellular substance interior irritation layer liver longitudinal lymphatic glands lymphatic vessels manner mass matter medullary membrane metamorphosis mucous mucous membrane muscle muscular naked eye namely nature nerve-fibres nerves nervous new-formations nuclei nucleoli nutrition observations ordinary organs osseous osseous tissue ossification osteoid papillæ parenchyma pathological peculiar periosteum physiological present primitive processes produced proliferation pus-corpuscles pyæmia quantity regard seen shew simple skin spinal marrow structure surface takes place thrombus tion transverse section tubercle tumour vascular veins whilst whole
Passagens conhecidas
Página 27 - ... infusorial animalcule, a fungus, or an alga, can be formed, equally little are we disposed to concede either in physiological or pathological histology, that a new cell can build itself up out of any non-cellular substance. Where a cell arises, there a cell must have previously existed (omnis cellula e cellula), just as an animal can spring only from an animal, a plant only from a plant.
Página 14 - Virchow, asserts still more emphatically that each system consists of 'an enormous mass of minute centres of action. . . . Every element has its own special action, and even though it derive its stimulus to activity from other parts, yet alone effects the actual performance of duties.
Página 187 - ... cancerous disease of the mamma, and when, during a long period, only the axillary gland remains diseased, without the group of glands next in succession or any other organs becoming affected with cancer, we can account for this upon no other supposition than that the gland collects the hurtful materials absorbed from the breast, and thereby for a time affords protection to the body...
Página 477 - ... closely together, that the vessels gradually become completely impervious and only the larger ones, which merely traverse the tubercle, remain intact. Generally fatty degeneration sets in very early in the centre of the knot (granule), where the oldest cells lie (Fig. 140), but usually does not become complete. Then every trace of fluid disappears, the corpuscles begin to shrivel, the centre becomes yellow and opaque, and a yellowish spot is seen in the middle of the grey translucent granule.
Página 27 - The upholders of this theory imagined, that originally a number of elementary globules existed scattered through a fluid, but that, under certain circumstances, they gathered together, not in the form of vesicular membranes, but so as to constitute a compact heap, a globe (mass, cluster — Kliimpchen), and that this globe was the starting point of all further development, a membrane being formed outside and a nucleus inside, by the differentiation of the mass, by apposition, or intussusception.
Página 27 - Even in pathology we can now go so far as to establish, as a general principle, that no development of any kind begins de novo, and consequently as to reject the theory of equivocal [spontaneous] generation just as much in the history of the development of individual -parts as we do in that of entire organisms. Just as little as we can now admit that a...
Página 27 - Just as little as we can now admit that a trenia can arise out of saburral mucus, or that out of the residue of the decomposition of animal or vegetable matter an infusorial animalcule, a fungus or an alga, can be formed: equally little are we disposed to concede, either in physiological or pathological histology, that a new cell can build itself up out of any non-cellular substance. Where a cell arises, there a cell must have previously existed (omnis ccllu/ae cellula,) just as. an animal can spring...
Página 311 - The absorption of matter into the interior of the cells is unquestionably an act of the cells themselves, for we are as yet acquainted with no method enabling us to produce this kind of proliferation in the body, by any mode of experimentation, through the medium of the agency primarily affecting either the nerves or the vessels.
Página 475 - I am of opinion that a tubercle is a granule, or a knot, and that this knot constitutes a new formation, and, indeed, one which, from the time of its earliest...
Página 9 - ... comparative anatomy and pathology, in which the nucleus also has a stellate or angular appearance; but these are extremely rare exceptions, and dependent upon peculiar changes which the elements has undergone. Generally, it may be said that, as long as the life of the cell has not been brought to a close, as long as cells behave as elements still endowed with vital power, the nucleus maintains a very nearly constant form. The nucleus, in its turn, in completely developed cells, very constantly...