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Kidneys
| Question | Answer |
|---|---|
| The Kidneys sit (where) in upper part of abdominal cavity? | Posteriorly |
| Which structure/bone are the kidneys largely protected by? | Lower ribs |
| The primary purpose of the kidneys is ......... | Homeostasis of the blood |
| Which organ does the kidney work with to purify the blood? | Liver |
| The kidneys are central in regulation of what? | Blood pressure |
| How much of Cardiac Output (Q) passes through the kidneys? | 20-25% of Q passes through kidneys |
| The renal arteries are ....(size)... branches of which vessel? | Major branches of the Aorta |
| Filtered blood is delivered back centrally in to the (name vessel)? | Inferior vena cava |
| The kidney also fine tunes the balance of what? | Essential salts in the blood |
| The kidneys also eliminate excess.... | Fluid/waste product being urine which drains down to the bladder |
| Where is the blood filtered? | The glomerulus |
| What is the glomerulus? How does it operate? | A ball of capillaries that operate via hydrostatic pressure |
| How does hydrostatic pressure work in glomerulus filtration? | The outgoing arteriolar is smaller than the incoming one |
| Which parts of the blood are pushed through the glomerulus? Where do they go? | Through to bowman capsule |
| Where is the glomerular filtrate collected? | Bowman’s capsule |
| The amount of blood filtered through the glomerulus is called the | Glomerular filtrate rate (ultrafiltrate) |
| What measurement is commonly used as a marker of kidney function? | GFR glomerular filtrate rate (ultrafiltrate) |
| What is not filtered out in glomerulus? | Blood cells and larger proteins are left in the blood |
| Blood in the arteriolar passes alongside/winds around nephron for what reason? | To allow reabsorption of what the body needs, I.e glucose, salts, water and Essential compounds such as HCO3 bicarbonate |
| What is the loop of henle | A Long u shaped portion of tubule that conduction urine within each nephron |
| What is the main function of the loop of henle? | The principle function of the loop of Henle is to recover water and salt/NaCl from the urine. This function allows production of urine that is far more concentrated than the blood, limiting the amount of water needed as intake for survival |
| What is another name for the loop of henle | The nephronic loop |
| What is a nephron? | A functional unit of the kidney containing glomerulus /loop of Henle etc |
| How do the kidneys increase BP? | Tbc |
| How do the kidneys lower BP? | TBC |
| What detects the BP changes? | TBC |
| What makes mamalian kidneys different to non mamaLs | Mamals contain loop of henle for improved reabsorbtion. the rest of the structure of the nephron is seen in all vertebrates |
Created by:
Debohack
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