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20 Cards in this Set
- Front
- Back
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Comprehensive renal circulation
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renal artery --> lobar a. --> interlobar a. --> arcuate a. --> interlobular a. --> afferent arteriole --> glomerulus --> efferent arteriole -->
peritubular capillaries --> vasa recta --> interlobular v. --> arcuate v. --> interlobular v. --> renal v. --> IVC |
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Following hemorrhage, renal blood flow is normally reduced because of...
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increase in SNS activity to the kidneys
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You can be sure that there is a net secretion of substance X by the kidney into the tubular
lumen when: |
the clearance of x is greater than the clearance of inulin
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The osmolarity of the interstitial fluid is greater in the ____ region of the kidney than in the _____ region.
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osmolarity of the interstitial fluid is greater in the INNER MEDULLA than in the CORTEX
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3 cellular components of juxtamedullary apparatus
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macula densa
extraglomerular mesangial cells juxtaglomerular cells |
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JGA regulates what to measures?
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GFR
RBF |
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Definition of RENAL BLOOD FLOW
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volume of blood delivered to kidneys per unit time
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Definition of renal PLASMA flow
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volume of blood plasma delivered to kidneys per unit time
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In a healthy, young adult at rest, is the renal blood flow greater in the medulla or the cortex?
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cortex
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what proportion of cardiac output to kidneys receive?
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25%
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What type of hormone is aldosterone?
From where is it released? |
Steroid
released from adrenal cortex |
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Passive secretion of potassium in the distal nephron decreases in response to an increase in:
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H+ secretion
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Which has higher osmolarity, Bowman's space or distal tubule?
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Bowman's space
(distal tubule has lowest osmolarity in nephron) |
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apical skin
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exposed, but poorly insulated areas of the body
palms, soles, face, ears |
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disruption of hemidesmosomes in the skin would cause blistering between which two layers?
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stratum basale and basal lamina
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During antidiuresis, which solute has the highest concentration in the medullary interstitium?
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urea
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T/F: blood delivering oxygen to the renal medulla flows through the vasa recta
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TRUE
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Glomerular filtration produces an ultrafiltrate of plasma in which the concentration of ______ is equal to the concentration in plasma.
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electrolytes
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Urea excreation rate is 10 mg/min. Urea reabsorption rate is 10 mg/min. Plasma urea concentration is 10 mg/dl.
What is the GFR? |
200 mg/L
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Does hypoalbuminermia affect GFR?
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no
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