Chapter 19

In which process can glucose transport reach saturation?

The kidneys function to produce hormones, excrete wastes, regulate blood pressure, and maintain ion balance. Which of the following is another function of the kidneys?

Approximately how much liquid moves through the kidneys of an adult during a 24-hour period?

Approximately what percent of the total filtered volume is excreted as urine each day?

When the plasma concentration of a substance exceeds its renal concentration, more of the substance will be

Match each step in urine formation to its description. A. excretion B. filtration C. reabsorption D. secretion movement from the peritubular capillaries to the nephron lumen

Urine is produced by the

Put the following in order from where urine is produced to where it exits the body: 1.Urethra 2.Urinary bladder 3.Nephron 4.Ureter

A patient has a genetic defect that decreases the number of GLUT transporters in the nephron tubule. Which would you expect?

The functional unit of the kidney is the __________.

During the micturition reflex, what does activation of parasympathetic efferent neurons cause the bladder to do?

Contents in the peritubular capillaries are actively transported into proximal and distal convoluted tubules in a process known as

Which change would cause an increase in afferent arteriolar resistance due to paracrine signaling from the macula densa?

Which is NOT a function of the kidneys?

Match each step in urine formation to its description. A. excretion B. filtration C. reabsorption D. secretion movement from the nephron lumen to the external environment

Most reabsorption of fluid from the filtrate back into the blood occurs from the __________.

Match each step in urine formation to its description. A. excretion B. filtration C. reabsorption D. secretion movement from the nephron lumen to the blood

When the macula densa detects an increase in NaCl concentration in the renal filtrate, what happens to the glomerular filtration rate (GFR)?

If the osmotic pressure in the glomerular capillaries increased from 28 mmHg to 35 mmHg due to dehydration, would net filtration increase or decrease?

Filtrate flow through the renal tubule increases when glomerular filtration rate_______

When filtrate flow through the renal tubule increases, reabsorption of sodium chloride by the tubule______

When filtrate flow through the renal tubule increases, the concentration of sodium chloride remaining in the filtrate_____

When filtrate flow through the renal tubule increases, the macula densa responds by______vasoconstrictors.

When filtrate flow through the renal tubule increases, the afferent arteriole responds by______

If you know that the renal clearance of substance X is zero, which of the following can you say is true about how the kidney handles X?

Using what you know about renal handling of Na+, predict the renal clearance of Na+.

The correct units for clearance of substance M are:

Match each step in urine formation to its description. A. excretion B. filtration C. reabsorption D. secretion movement from the glomerulus to the nephron lumen

Why is inulin administration an effective way of measuring renal clearance rates?

What happens if reabsorption of a substance increases (and filtration and secretion stay the same)?

If all glucose is normally reabsorbed in the proximal tubule of the nephron, why do people with diabetes have glucose in their urine?

Damage to the renal medulla would interfere first with the functioning of the

Which of the following substances is not normally found in filtrate?

What is the primary driving force (pressure) that produces glomerular filtration?

Which substance would be found in higher concentration if the membrane were damaged?

If the osmotic pressure in the glomerular capillaries increased from 28 mm Hg to 35 mm Hg, would net filtration increase or decrease?

Calculate the net filtration pressure if capillary hydrostatic pressure is 60 mm Hg, capillary osmotic pressure is 25 mm Hg, and capsular hydrostatic pressure is 10 mm Hg.

The primary function of the proximal tubule is

Where does all filtration take place in the kidneys?