Term
| Urinary system basic overview |
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Definition
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removes cellular waste from the blood
kidneys form urine
the urinary tract: ureter transports urine to bladder, which stores urine, and urethra voids urine
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Term
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Definition
- excrete waste by forming urine
- regulates blood volume/pressure
- regulates RBC production by secreting erythropoitin
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Term
| Kidney position and Support: |
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Definition
- Location: retroperitoneal (between T12 and L3)
- Right kidney is lower than left
- adrenal glands are on superior pole?
- 3 surrounding/supporting layers:
- fibrous capsule--shapes and protects
- Perinephric fat--cushions and holds in place
- Renal Fascia--anchors to wall and other structures
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Term
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Definition
- Renal Hilum
- 2 renal sinus- renal cortex and renal medulla
- renal pyamids
- renal columns
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Term
Renal Hilum (kindey anatomy)
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Definition
| The recess (depression) on medial surface at the entrance/exit to the kidney |
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Term
| 2 Main Regions wrapping Renal Sinus: |
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Definition
Renal cortex (outer layer)
Renal medulla (inner layer)
- Renal pyramid: renal papillae towards sinus and hilum
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Term
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Definition
| the renal pyramid plus cortical tissue |
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Term
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Definition
- abundant in blood vessels
- Approximately 1200ml flow through both kidneys per minute (20-25% of cardiac output)
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Term
| Bloodflow order to Kidneys: |
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Definition
| renal A--segmental AA--interlobar AA--arcuate AA--interlobular AA-- afferent arterioles--glomerulus--efferent arterioles--Peritubular capillaries-- Interlobular VV--Arcuate VV--interlobar VV--Renal V |
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Term
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Definition
- The functional unit of the kidney
- Renal Corpuscle
- Renal Tubule
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Term
| Renal Corpuscle (nephron) |
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Definition
- Glomerulus
- Glomerular capsule
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Term
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Definition
- proximal convoluted tubule (PCT)
- nephron loop
- distal convoluted tubule (DCT)
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Term
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Definition
- Glomerulus: capillary knot (high pressure)
- Glomerular Capsule: double-walled epithelial cup
- Pareital layer-simple squamous epithelium
- Visceral layer-composed of podocytes and covers the glomerulus
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