Renal physiology Flashcards
What is the primary function of the kidneys?
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What does the ureter do?
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What does the urinary bladder do?
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What does the urethra do?
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What are the 4 specific functions of the kidney?
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What is the functional unit of the kidney?
How many nephrons per kidney?
What are they made up of?
What shape do these things form around what? Called what?
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What are juxtamedullary nephrons?
What kind of loop of Henle?
Involved in what?
What percentage of nephrons?
What are cortical nerphons?
What kind of loop of Henle?
What are they involved with?
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Renal blood flow is how much per min?
more than 1 liter/min
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Define the forces governing filtration
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Describe how constricting the afferent arterial or the efferent arterial affert globular filtration rate. Describe how dilating efferent arterial and dialating afferent arterial affect globular filtration rate
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Example for creatine clearance:
if U= 60mg/dl
V= 2ml/min
P=1mg/dl
What is creatine clearance?
$
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Explain what
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Describe how sodium moves from the tubular lumen, through the tubular epithelial cells, into the interstitial fluid, and finally into the peritubular capillaries. How does this affect the local osmalarity in the tubular lumen and interstitial fluid. How does it affect water movement?
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Explain how HCO3- is reabsorbed
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When is there a net gain of HCO3-?
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Describe the micturition reflex
Bladder wall contains stretch receptors.
When stretched, signals are sent to the lower spinal cord
Activates parasympathetic neruons toing to the bladder and urethra
Bladder wall contracts involuntairly and internal urethral spincter relaxes—> urge to urinate
Urination can be prevented by voluntarily contractive the external urethral spinchter
relax external urethral spincter___> contents of bladder are released out urethra—>urination
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What is urinary incontinence? Who is affected?
Inability to control urination
Infants
People with spinal cord injury
Some eldery people
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What are the treatments for renal failure?
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