. Biology and human life. Biology. ELIMINATION OF WASTES 195 drink plenty of water and empty the bladder often enough to prevent discomfort, which is an indication of strain. On the other hand, we may do something indirectly through attention to our diet and our exercise and our general mode of living. An excess of proteins means an excess of urea to be filtered through the kidneys. Lack of exercise results in poor cir- culation, so that wastes re- main in the blood a long time. Bad breathing habits add to the load upon the kidneys. Alcohol causes congestion, or clogging, of the capillaries, a
. Biology and human life. Biology. ELIMINATION OF WASTES 195 drink plenty of water and empty the bladder often enough to prevent discomfort, which is an indication of strain. On the other hand, we may do something indirectly through attention to our diet and our exercise and our general mode of living. An excess of proteins means an excess of urea to be filtered through the kidneys. Lack of exercise results in poor cir- culation, so that wastes re- main in the blood a long time. Bad breathing habits add to the load upon the kidneys. Alcohol causes congestion, or clogging, of the capillaries, and in the kidneys that means de- laying the removal of wastes. In short, keeping well or healthy is not the simple arithmetic of keeping a num- ber of organs in condition. Everything of importance affects the whole organism, although it may strike now at one organ and now at another. A generation ago every worker was allowed to quench his thirst in his own way, as best he could. The sale of beer and other prepared drinks concerned only the buyers and the sellers. Now, however, employers and managers of factories, shops, stores, and offices are finding it worth while to provide an abundance of clean, cool, and palatable drinking water. In some states the law requires that suitable drinking water be supplied in all work- rooms. In a similar way, the provision of suitable toilet rooms,. Fig. 98. Kidneys and bladder a, the main artery, and b, the main vein, in the abdominal cavity, giving off branches to the kidneys cc; d, funnel-shaped cavity in \Yhich the waste fluid is gathered by the gland action of the kidney; ee, the tireters, tubes leading from the kidneys to the bladder /. From the bladder the urine is discharged at intervals through a tube leading to the exterior, the urethra. The left kidney is represented as cut through lengthwise. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and a
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishe, booksubjectbiology
