The Kidneys
- Created by: EmilyRH
- Created on: 13-11-16 14:04
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- The Kidney
- How it works
- 1) They filter ALL small molecules of the blood
- 2) First they remove all SUGAR, IONS, UREA and some WATER
- 3) Sugar is reabosrbed into the blood + all ions and water we need - 1/2 = with the concentration gradient
- 4) All urea, excess water + ions = passed down the URETER as urine
- The Nephron
- 1) Ultrafiltration blood entering the glomerulus from the R.A = v. high pressure - small molecules = forced into nephron @ Bowman capsule. Protein + RBCs remain in blood.
- 2) First they remove all SUGAR, IONS, UREA and some WATER
- 2) Selective reabsorption glucose needs to return to the blood from respiration it's reabsorbed and some water is also reabsorbed leaving urea, ions and water
- 1) Ultrafiltration blood entering the glomerulus from the R.A = v. high pressure - small molecules = forced into nephron @ Bowman capsule. Protein + RBCs remain in blood.
- ADH
- produced in the pituitary gland when increased blood concentration = detected
- - travels in blood to Kidneys - causes cells of collecting ducts = more permeable to water = more water reabsorbed - = reduced volume of urine and increase in concentration
- Control of blood glucose
- Glucose is absorbed into bloodstream excess glucose = stored as Glycogen in liver + muscles
- How it works
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