10 Questions
What is the primary force driving filtrate formation in the glomerulus?
Glomerular hydrostatic pressure
What is the normal range of glomerular filtration rate (GFR) in a healthy individual?
90-130 ml/min
What is the effect of increased glomerular filtration rate (GFR) on reabsorption of needed substances?
Decreased reabsorption of needed substances
Which of the following mechanisms is responsible for maintaining a nearly constant glomerular filtration rate (GFR) under normal conditions?
Renal autoregulation
What is the net filtration pressure (NFP) in a healthy individual, assuming a glomerular hydrostatic pressure (HPg) of 55 mmHg, an osmotic pressure of glomerular blood (OPg) of 30 mmHg, and a capsular hydrostatic pressure (HPc) of 15 mmHg?
10 mmHg
What is the effect of increased glomerular blood pressure on glomerular filtration rate (GFR)?
Increased GFR
What is the primary function of the renal autoregulation mechanism?
To maintain a nearly constant glomerular filtration rate
What is the effect of decreased glomerular filtration rate (GFR) on waste disposal?
Decreased waste disposal
What is the relationship between glomerular filtration rate (GFR) and net filtration pressure (NFP)?
GFR is directly proportional to NFP
What is the consequence of a glomerular filtration rate (GFR) higher than 130 ml/min?
Decreased reabsorption of needed substances
Test your understanding of the autoregulation mechanisms that control renal blood flow, including myogenic and tubuloglomerular feedback responses. Learn how these intrinsic controls regulate glomerular filtration rate (GFR) and respond to changes in blood pressure and sodium concentration.
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