Urinary system week 12 Flashcards
1) The urinary system does all of the following, except that it
A) secretes excess glucose molecules.
B) regulates blood volume.
C) contributes to stabilizing blood pH.
D) eliminates organic waste products.
E) regulates plasma concentrations of electrolytes.
- A
2) Urine is produced by the A) liver. B) urinary bladder. C) kidney. D) ureter. E) urethra.
- C
3) Urine is carried to the urinary bladder by A) blood vessels. B) lymphatics. C) the ureters. D) the urethra. E) the calyces.
- C
4) Each of the following organs is part of the urinary system, except the A) kidney. B) urinary bladder. C) liver. D) ureter. E) urethra.
- C
5) All of the following are true of the kidneys, except that they are
A) located in a position that is retroperitoneal.
B) surrounded by a renal capsule.
C) located within the peritoneum.
D) held in place by the renal fascia.
E) surrounded by a thick layer of adipose tissue.
- C
6) The prominent indentation on the medial surface of the kidney is the A) calyx. B) pelvis. C) ureter. D) hilus. E) pyramid.
- D
7) The outermost layer of kidney tissue is the A) renal cortex. B) renal medulla. C) major calyx. D) minor calyx. E) renal pelvis.
- A
8) The innermost layer of kidney tissue is the A) renal cortex. B) renal medulla. C) major calyx. D) minor calyx. E) renal pelvis.
- B
9) Conical structures that are located in the renal medulla are called A) pyramids. B) renal columns. C) renal pelvises. D) nephrons. E) calyces.
- A
10) Renal columns are
A) internal cavities lined by the fibrous capsule and located in the area of the hilus.
B) expanded ends of the ureters.
C) the basic functional units of the kidney.
D) bundles of tissue that lie between pyramids and extend from the renal cortex toward the renal sinus.
E) conical structures that are located in the renal medulla.
- D
11) The expanded proximal end of the ureter forms the A) renal sinus. B) renal pelvis. C) renal calyx. D) renal hilus. E) renal corpuscle.
- B
12) Major calyces are
A) large branches of the renal pelvis.
B) expanded ends of nephrons.
C) basic functional layers of the kidney.
D) conical structures that are located in the renal medulla.
E) the expanded ends of renal pyramids.
- A
13) Bowman’s capsule and the glomerulus make up the A) renal pyramid. B) loop of Henle. C) renal corpuscle. D) renal papilla. E) collecting tubule system.
- C
14) The cells of the macula densa and the juxtaglomerular cells form the A) renal corpuscle. B) filtration membrane. C) loop of Henle. D) juxtaglomerular apparatus. E) afferent arteriole.
- D
15) The expanded end of a nephron is the A) glomerulus. B) renal corpuscle. C) proximal convoluted tubule. D) distal convoluted tubule. E) loop of Henle.
- B
16) A glomerulus is
A) the expanded end of a nephron.
B) a knot of capillaries that lies within the renal corpuscle.
C) the portion of the nephron closest to the renal corpuscle.
D) the portion of the nephron that attaches to the collecting duct.
E) the horseshoe-shaped segment of the nephron
- B
17) The portion of the nephron closest to the renal corpuscle is the A) loop of Henle. B) proximal convoluted tubule. C) distal convoluted tubule. D) collecting duct. E) minor calyx.
- B
18) The portion of the nephron that attaches to the collecting duct is the A) loop of Henle. B) proximal convoluted tubule. C) distal convoluted tubule. D) collecting duct. E) minor calyx.
- C
19) The horseshoe-shaped segment of the nephron is the A) collecting duct. B) proximal convoluted tubule. C) distal convoluted tubule. D) loop of Henle. E) minor calyx.
- D
20) The primary function of the proximal convoluted tubule is
A) filtration.
B) absorption of ions, organic molecules, vitamins, and water.
C) secretion of acids and ammonia.
D) secretion of drugs.
E) adjusting the urine volume.
- B
21) The process of filtration occurs at A) the proximal convoluted tubule. B) the distal convoluted tubule. C) the collecting duct. D) the loop of Henle. E) the Bowman’s capsule.
- E
22) Each of the following is a characteristic of a normal urine sample, except A) amber color. B) cloudy. C) acidic pH. D) specific gravity greater than 1.0. E) ammoniacal odor.
- B
23) Each of the following is a normal constituent of urine, except A) hydrogen ions. B) urea. C) large proteins. D) salts. E) creatinine.
- C
24) The most selective pores in the filtration membrane are located in the A) capillary endothelium. B) lamina densa. C) podocytes. D) basement membrane of the capillaries. E) capsular space.
- C
25) Substances larger than \_\_\_\_\_ are normally not allowed to pass through the filtration membrane. A) sodium ions B) glucose C) albumin D) amino acids E) urea
- C
26) The process of filtration is driven by A) active transport. B) blood osmotic pressure. C) blood hydrostatic pressure. D) renal pumping. E) solvent drag.
- C
27) The ability to form a concentrated urine depends on the functions of A) the proximal convoluted tubule. B) the distal convoluted tubule. C) the collecting duct. D) the loop of Henle. E) Bowman’s capsule.
- D
28) The cells of the proximal convoluted tubule normally reabsorb all of the following, except
A) approximately 60 percent of the volume of the filtrate produced in the renal corpuscle.
B) approximately 50 percent of the waste products.
C) cations such as sodium, calcium, and magnesium.
D) anions such as bicarbonate, chloride, sulfate, and phosphate.
E) virtually all of the glucose and other nutrients under normal conditions.
- B