FREE AND STUDY GAMES ABOUT STACK 4153771 EXAM

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FREE AND STUDY GAMES ABOUT STACK #4153771 EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

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-Guarantee passing score -83 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Which structure of the kidney functions to reabsorb nutrients from the filtrate?

Answer:

the proximal convoluted tubule Question 2: The area of the urinary bladder bounded by the openings of the two ureters and the urethra is called the

Answer:

trigone.Question 3: The final composition of urine is represented by which of the following statements?

Answer:

Urine = substances filtered - substances reabsorbed + substances secreted.

Question 4: The majority of renal innervation is by the

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sympathetic nervous system.

Question 5: The ________ is the plasma concentration at which a specific compound will begin appearing in the urine.

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renal threshold Question 6: The mechanism for producing a concentrated urine involves all of the following except

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obligatory water reabsorption in the proximal convoluted tubule.Question 7: The portion of the nephron that empties into the collecting duct is the

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distal convoluted tubule.Question 8: Which of these is NOT considered to be part of the excretory system?

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cardiovascular system Question 9: The cells of the macula densa, the juxtaglomerular cells, and the extraglomerular mesangial cells form the

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juxtaglomerular complex.

Question 10: Glomerular (Bowman's) capsule and the glomerulus make up the

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renal corpuscle.

Question 11: An important structure for blood pressure regulation is the

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juxtaglomerular complex.

Question 12: The detrusor muscle

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compresses the urinary bladder and expels urine through the urethra.

Question 13: Aldosterone-sensitive portions of the distal convoluted tubule and collecting duct allow for the exchange of which ions? (Figure 26-13)

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reabsorption of sodium ions in exchange for potassium ions Question 14: Which of the following substances should not be filtered (because it should be too large to pass through the filtration membrane)?

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proteins Question 15: When the bladder is full, urine is eliminated through the process known as

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micturition Question 16: Sympathetic stimulation of the kidney can do all of the following except

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increase the glomerular filtration rate.Question 17: Modified smooth muscle cells in the wall of the afferent arteriole that secrete renin are called

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juxtaglomerular cells.Question 18: The ________ is a capillary bed that parallels the nephron loop (loop of Henle) in the juxtamedullary nephrons.

Answer:

vasa recta

Question 19: The main force that causes filtration in a nephron is

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glomerular hydrostatic pressure.Question 20: The process that transports solutes, including many drugs, into the tubular fluid is called

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secretion.

Question 21: In response to increased levels of aldosterone, the kidneys produce

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urine with a lower concentration of sodium ions.Question 22: In the renal corpuscle, the visceral layer is a layer of specialized cells called

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podocytes

Question 23: The region known as the macula densa is part of

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the distal convoluted tubule.

Question 24: Excess release of natriuretic peptides would cause

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a large volume of dilute urine.

Question 25: Renal columns are

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bundles of tissue that extend between pyramids from the cortex.Question 26: The process of ________ involves a carrier protein that can transport a molecule across the cell membrane down its concentration gradient.

Answer:

facilitated diffusion

Question 27: The ureters and urinary bladder are lined by ________ epithelium.

Answer:

transitional

Question 28: The ________ delivers urine to a minor calyx.

Answer:

papillary duct