Kidney Regulation Simulation

Question 1 of 4

The function of the kidney relies on maintaining a(n) _______ glomerular filtration rate (GFR).

variable

constant

unrestricted

unregulated

Correct. See Key Concept 51.4 The Nephron Is the Basic Functional Unit of Vertebrate Excretory Systems

Incorrect. See Key Concept 51.4 The Nephron Is the Basic Functional Unit of Vertebrate Excretory Systems

Refer to the table below.

For each condition 1–4, identify the corresponding effect on GFR.

A = Decreases; B = Increases; C = Increases; D = Decreases

A = Decreases; B = Increases; C = Decreases; D = Increases

A = Increases; B = Decreases; C = Increases; D = Decreases

A = Increases; B = Decreases; C = Decreases; D = Increases

Correct. See Key Concept 51.6 Kidney Function Is Regulated

Incorrect. See Key Concept 51.6 Kidney Function Is Regulated

How do efferent and afferent glomerular arterioles differ?

Efferent arterioles are regulated by the hormone angiotensin; afferent arterioles are not.

Efferent arterioles lead into the glomerulus; afferent arterioles lead away from the glomerulus.

Constriction and dilation of the efferent arterioles can influence GFR; constriction and dilation of the afferent arterioles cannot.

Regulation of GFR involves changes in afferent arterioles, but not changes in efferent arterioles.

Correct. See Key Concept 51.6 Kidney Function Is Regulated

Incorrect. See Key Concept 51.6 Kidney Function Is Regulated

Refer to the flowchart below.

Fill in the blanks to complete the flowchart describing the steps to regulate GFR through efferent arteriole changes.

A = Activation of angiotensin; B = Release of renin; C = Constriction of efferent arterioles

A = Release of renin; B = Constriction of efferent arterioles; C = Activation of angiotensin

A = Constriction of efferent arterioles; B = Activation of angiotensin; C = Release of renin

A = Release of renin; B = Activation of angiotensin; C = Constriction of efferent arterioles

Correct. See Key Concept 51.6 Kidney Function Is Regulated

Incorrect. See Key Concept 51.6 Kidney Function Is Regulated

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Chapter 1. Kidney Regulation Simulation