Nier en Zuur-base balans
4 important questions on Nier en Zuur-base balans
Explain how the kidneys control the volume and composition of all body fluids.
- Water and solutes are freely exchanged between the plasma and the interstitial fluid.
- Since the kidneys regulate the volume and composition of the plasma, they also regulate the volume and composition of the interstitial fluid.
- Changes in the interstitial fluid affect the intra cellular fluid. Therefore the kidneys also control the volume and composition of the intra cellular fluids, and therefore all body fluids.
What do the kidneys secrete?
- The hormone erythropoietin (stimulates erythrocyte production by the bone marrow).
- The enzyme renin (necessary for production of the hormone angiotensin II, which is important in regulating salt and water balance for long-term control of blood pressure).
What does the urinary system consist of? What pathway does urine follow?
Urine is conducted from the kidneys to the bladder by the ureters. The bladder stores the urine until it is time to excrete it. The urine then moves through the urethra and out of the body.
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Why is rich blood supply crucial to the kidney's function?
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