. Un pratico trattato sulle malattie della pelle, per l'uso di studenti e professionisti. rsection beingtermed nuclei, nucleoli, e granuli, fornisce già describedfilaments, che producono quindi continuità attraverso tutti i viventi layersof il elementi epiteliali, come pure attraverso gli strati sottostanti del tessuto connettivo. Gli epiteli sono sprovvisti o con il sangue o la linfa-navi; ma, quando la vita sono forniti con un grande numerodi nervi, che in forma di minuscole fibre bordati, traversethe sostanza intercellulare e che sono in diretta comunicazione conla ri

• Collaboratore: The Reading Room / Alamy Foto Stock
• ID dell’immagine: 2AG95PN
• Dimensioni dei file: 7,2 MB (627 KB Download compresso)
• Liberatorie: Modello - no | Proprietà - no
• Dimensioni: 1755 x 1424 px | 29,7 x 24,1 cm | 11,7 x 9,5 inches | 150dpi

Altre informazioni

Questa foto è un'immagine di pubblico dominio, il che significa che il copyright è scaduto o che il titolare del copyright ha rinunciato a tale diritto. Alamy addebita un costo per l'accesso alla copia ad alta risoluzione dell'immagine.

Questa immagine potrebbe avere delle imperfezioni perché è storica o di reportage.

. A practical treatise on diseases of the skin, for the use of students and practitioners. rsection beingtermed nuclei, nucleoli, and granules, furnishes the already describedfilaments, which thus produce continuity through all the living layersof the epithelial elements, as well as through the underlying layers ofthe connective tissue. The epithelia are unprovided with either blood-or lymph-vessels; but, when living, are supplied with a large numberof nerves, which, in the shape of very minute beaded fibres, traversethe intercellular substance, and which are in direct communication withthe reticulum of living matter within the protoplasmic bodies them-selves, , The living masses of protoplasm, just described, play the most im-portant part in all the pathological and physiological processes observedin the skin. It is probable that, in the embryo, all the appendages of 26 DISEASES OF THE SKIN. the skin are formed directly by their assimilative and reproductive pro-cesses; and it is certain that in health and in disease they furnish theorganic matter of all secretions. Fig. 7.. Prickle-cells from a condyloma (magnified about 625 diameters): a, cavity of cell-nucleus ;b, nucleus; c, nucleolus ; d, prickles—these are greatly developed on the protoplasm of the cells.The dots on the surface of the protoplasmic mass represent the appearance of the prickles whendirected toward the eye of the observer. Some of the protoplasmic threads are seen passing fromone cell to another. Next the corium is a layer of cells, columnar in form, and arrangedwith their long axes nearly at right-angles to the plane of that portionof the corium upon which they are superimposed. More externallythe cells are rounded or cuboidal in shape, with large, distinct nuclei.They are not arranged in definite strata except in the very outermostlayers, where the cells are somewhat flattened and elongated. Betweenthe cells in the deeper layers outwandered leucocytes may at times berecognized. The Stratum Gr

Parole chiave associate all'immagine

• bookcentury1800
• bookdecade1890