Figure 1-3. External view of the right kidney.
a. Functions of the Kidneys. The kidneys accomplish these functions:
(1) Filter metabolic wastes. The kidneys remove wastes from the blood in
the form of urine.
Form urine. Urine is formed by the activities of the kidneys.
(3) Balance fluid and electrolytes. The kidneys are the organs that regulate
Balance acid base.
(5) Influence blood pressure. To aid in regulating blood pressure, the
kidneys secrete the enzyme renin.