Why the glomerulus is such a high pressure capillary bed
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The glomerulus is a unique, high-pressure capillary bed because the ___________ arteriole feeding it is larger in diameter than the ____________ arteriole draining the bed. Glomerular filtrate is very similar to ____________ , but it has fewer proteins. Mechanisms of tubular reabsorption include ___________ and ___________. As an aid for the reabsorption process, the cells of the proximal convoluted tubule (PCT) have dense ____________ on their luminal surface, which increase their _______________ dramatically. Other than reabsorption, an important tubule function is _____________, which is important for ridding the body of substances not already in the filtrate. Blood composition depends on ___________, __________, and __________. In a day’s time, 180 liters of blood plasma are filtered into the kidney tubules, but less than ________ liters of urine are usually produced. ____________ is responsible for the normal yellow color of urine. The three major nitrogenous wastes found in the blood, which must be disposed of, are ____________, _____________, and ___________. The kidneys determine how much water is to be lost from the body. When water loss via vaporization from the ___________ or ___________ of perspiration from the skin is excessive, urine output ____________. If the kidneys become nonfunctional, ___________ is used to cleanse the blood of impurities.