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20 Cards in this Set
- Front
- Back
Basic unit of kidney
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Uriniferous tubule
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2 distinct kidney sections with differing embryologic origins
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1. Collecting tubule
2. Nephron |
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Tuft of blood vessels in the nephron
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Glomerulus
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Epithelium in Bowman's capsule
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Squamous
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Interlocking epithelium of the visceral epithelium forming part of blood urine barrier
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Podocytes
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3 components of blood-urine barrier
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1. Walls of capillaries
2. Basement membranes 3. Slit pore membrane |
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Proximal convoluted tubule has what epithelium?
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short simple columnar w/ villi and apical canaliculi
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Distal convoluted tubule has what epithelium?
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short cuboidal w/O villi
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Collecting tubule has what epithelium?
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Cuboidal at first, toward the renal pyramid it changes to columnar
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3 structures in the renal cortex.
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1. Glomerulus
2. Prox Conv Tub 3. Dist Conv Tub. |
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The three pressures involved in fluid movement in the kidney.
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1. Cardiac pressure-- 70 mm hg
2. Colloid pressure of blood--32 mm hg 3. Bowman's capsule pressure-- 20 mm hg |
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3 functions of mesangial cells
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1. Form architecture of glomerulus
2. Phagocytize large proteins 3. Control blood flow thru glomerular capillary via contractility |
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The path of the blood thru the kidney.
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1. Renal artery
2. Interlobular arteries 3. Intralobular arteries 4. Afferent arterioles 5. Glomerulus 6. Efferent arterioles 7. Vasa recta capillaries |
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How does the area surrounding the ascending thin limb draw out so much water?
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Cells pump Na into interstitial space, creating an osmotic gradient favoring water absorption. HEAVY ATP usage.
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7/8 of water resorption happens where?
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Proximal convoluted tubule
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Ammonia, urea, and H+ ions are added where?
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Distal convoluted tubule
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ADH acts mainly where?
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Collecting tubules
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Deficiency in ADH causes what disease?
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Diabetes insipidus
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This hormone affects sodium uptake
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Aldosterone
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The antagonist of ADH is called? Produced where?
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atrial natriuretic hormone, atrium of heart
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