Exam 34: Solute and Water Transport Along the Nephron: Tubular Function

Starling forces regulate sodium and water reabsorption by the proximal tubule.Which of the following changes in Starling forces would increase reabsorption?

The following graph depicts the changes in tubular fluid concentrations of various substances along the length of the proximal tubule,plotted as the tubular fluid-to-plasma concentration ratio (TF/P).Thus the TF/P = 1 for a substance that is at the same concentration in the tubular fluid and plasma (for all substances that are freely filtered,TF/P = 1 at the glomerulus). Match the following substances to the appropriate TF/P curve. creatinine

Which of the following increases the reabsorption of sodium and chloride in the distal tubule and collecting duct?

In the late portion of the proximal tubule,part of Na⁺ reabsorption is passive,through the paracellular pathway.What is the primary driving force for this passive reabsorption of Na⁺?

Na⁺ reabsorption by the thick ascending limb of Henle's loop is:

Proximal tubule HCO₃^- reabsorption is inhibited by which of the following?

The following graph depicts the changes in tubular fluid concentrations of various substances along the length of the proximal tubule,plotted as the tubular fluid-to-plasma concentration ratio (TF/P).Thus the TF/P = 1 for a substance that is at the same concentration in the tubular fluid and plasma (for all substances that are freely filtered,TF/P = 1 at the glomerulus). Match the following substances to the appropriate TF/P curve. glucose

The following graph depicts the changes in tubular fluid concentrations of various substances along the length of the proximal tubule,plotted as the tubular fluid-to-plasma concentration ratio (TF/P).Thus the TF/P = 1 for a substance that is at the same concentration in the tubular fluid and plasma (for all substances that are freely filtered,TF/P = 1 at the glomerulus). Match the following substances to the appropriate TF/P curve. Na⁺