Practical physiological chemistry : a book designed for use in courses in practical physiological chemistry in schools of medicine and of science . Crenated Erythrocytes. the normal biconcave, yellow erythrocyte (Plate IV, oppositepage 151) or may exhibit certain modifications in form such asthe crenated type (Fig. 115, above) which is often seen in con-23 338 PHYSIOLOGICAL CHEMISTRY. centrated urine. Under different conditions they may becomeswollen sufficiently to entirely erase the biconcave appearanceand may even occur in the form of colorless spheres having asmaller diameter than the orig
Practical physiological chemistry : a book designed for use in courses in practical physiological chemistry in schools of medicine and of science . Crenated Erythrocytes. the normal biconcave, yellow erythrocyte (Plate IV, oppositepage 151) or may exhibit certain modifications in form such asthe crenated type (Fig. 115, above) which is often seen in con-23 338 PHYSIOLOGICAL CHEMISTRY. centrated urine. Under different conditions they may becomeswollen sufficiently to entirely erase the biconcave appearanceand may even occur in the form of colorless spheres having asmaller diameter than the origina 1 disc-shaped are found in urinary sediment in hemorrhage ofthe kidney or of the urinary tract, in traumatic hemorrhage,hemorrhage from congestion and in hemorrhagic diathesis. Spermatozoa.—Spermatozoa may be detected in the urinarysediment in diseases of the genital organs, as well as aftercoitus, nocturnal emissions, epileptic and other convulsive Fig. i i Human Spermatozoa. attacks and sometimes in severe febrile disorders, especially intyphoid fever. In form they consist of an oval body, to whichis attached a long, delicate tail (Fig. 116, above). Upon ex-amination they may show motility or may be motionless. Urethral Filaments.—These are peculiar thread-like bodieswhich are sometimes found in urinary sediment. They mayoccasionally be detected in normal urine and pathologically arefound in the sediment in acute and chronic gonorrhoea and inurethrorrhcea. The ground-substance of these urethral fila-ments is in part, at least, similar to that of the cylindroids (see urine: sediments. 339 page 337)* The urine first voided in the morning is besladapted for the examination for filaments. These filaments may ordinarily l>e removed l>y a pipette since they are gener-ally macrscopic. Tissue Debris.—Masses of cells or fragments of tissue arcfrequently found ill urinary sediment. They may be found inthe sediment in tubercular
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