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Autoregulation of Kidney Function

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Questions and Answers

What is the primary mechanism by which kidneys maintain constant renal blood flow despite changes in blood pressure?

Hormonal control

Autoregulation (correct)

Nervous system regulation

Filtration rate adaptation

Within what range of arterial blood pressure can kidneys effectively maintain glomerular filtration rate?

120-180 mmHg

100-200 mmHg

80-170 mmHg (correct)

50-100 mmHg

What happens to renal blood flow during marked fluctuations in arterial blood pressure?

It fluctuates proportionally

It decreases significantly

It is regulated solely by external factors

It stays relatively constant (correct)

Which statement best describes the concept of autoregulation in the kidneys?

<p>It stabilizes renal blood flow over a range of blood pressures. (B)</p> Signup and view all the answers

During autoregulation, what is the kidneys' response to fluctuations in arterial blood pressure?

<p>Maintain renal blood flow and GFR within a constant range (A)</p> Signup and view all the answers

Study Notes

Intrinsic Control of Glomerular Filtration

Kidneys can maintain renal blood flow and glomerular filtration rate (GFR) despite large changes in arterial blood pressure
This is known as autoregulation
Autoregulation ensures that blood pressure fluctuations between 80-170 mmHg do not significantly affect renal blood flow and GFR

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Description

This quiz explores the intrinsic control mechanisms of glomerular filtration in the kidneys. Learn how autoregulation helps maintain renal blood flow and glomerular filtration rate despite variations in arterial blood pressure. Test your understanding of this essential physiological process.