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16 Cards in this Set
- Front
- Back
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Cells in the Bowman's capsule/granular capsule that wrap around capillaries of the glomerulus |
Podocytes |
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Cells that sense changes in NaCl in the distal convoluted tubule; triggers an autoregulatory response |
Macula densa |
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Responses of macula densa |
Decrease resistance to blood flow - increases pressure - normalize granular filtration rate (GFR) Increase the release of renin from the juxtaglomerular cells |
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Releases renin |
Juxtaglomerular cells/granular cells |
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Renin-Angiotensin System Drop in blood pressure and fluid volume |
Liver releases Angiotensinogen Kidney releases Renin |
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Renin-Angiotensin System Liver releases AngiotensinogenKidney releases Renin |
Angiotensin I is formed |
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Renin-Angiotensin System Angiotensin I is formed |
Lungs releases Angiotensin-Converting Enzyme Angiotensin I becomes Angiotensin II |
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Renin-Angiotensin System Lungs releases Angiotensin-Converting EnzymeAngiotensin I becomes Angiotensin II |
Angiotensin II acts upon the Adrenal Gland to stimulate Aldosterone. Aldosterone stimulates the absorption of NaCl and water. Angiotensin II stimulates vasoconstriction. |
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3 processes of urine formation |
Glomerular filtration Selective tubular reabsorption Selective tubular secretion |
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Process wherein kidneys filter excess fluid and waste products out of the blood |
Glomerular filtration |
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Physical barriers for glomerular filtration |
Capillary endothelium Basement membrane Inner layer of Bowman's capsule |
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Molecules are filtered out of capillaries and nitrogenous waste products, and water in glomerulus are reabsorbed from the filtrate as they pass through the nephron |
Selective tubular reabsorption |
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Process of selective tubular reabsorption |
1. All sugar, most salts, and some water are reabsorbed 2. Water potential is decreased thru addition of salt 3. Water potential is increased due to active transport 4. Water potential is decreased to make the urine concentrated |
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Used to remove drugs, toxins, and other poisons or other natural compounds in excessive amounts (such as K, H, and urea) |
Selective tubular secretion |
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Pressure tending to force fluid out of the capillary |
Effective filtration pressure |
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Acts much like a sieve (strainer); all substances up to a molecular weight of about 65,000 passes through the barrier |
Physical barriers |
