7.5 the formation of urine

7.5 the formation of urine - 7.5 Formation of Urine Kidneys...

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7.5 Formation of Urine Kidneys are one of the major homeostatic organs in the body. They not only excrete waste, but they control water balance, pH, and levels of sodium, potassium, bicarbonate and calcium in the blood. The kidney also secretes erythropoietin, a hormone that stimulates r___ b______ cell production. And they activate vitamin D production in the skin. As much as _____% of your body’s blood can be in your kidneys at one time. You have two kidneys instead of one because kidneys cannot repair themselves very easily. If one kidney is damaged the other kidney can enlarge to do the job of two. The formation of urine can be broken down into three steps. Filtration Blood moves through the a_________ arteriole into the g__________ . The glomerulus filters the blood removing dissolved solutes. Protein, blood cells and platelets are too l_____ to pass through the glomerulus. Blood in the glomerulus is under h______ pressure and this pressure aids in the filtration. Reabsorption
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7.5 the formation of urine - 7.5 Formation of Urine Kidneys...

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