P3 Chapter 26 THE URINARY SYSTEM Flashcards
Urine leaves the urinary bladder through the
a. urethra
b. collecting duct
c. ureter
d. renal vein
a. urethra
Which of the following structures are found in the renal cortex?
a. distal convoluted tubules
b. renal columns
c. collecting ducts
d. minor calices
a. distal convoluted tubules
Fenestrations are associated with the
a. loop of Henle
b. Bowman’s capsule
c. collecting duct
d. glomerulus
d. glomerulus
Urine contains
a. waste products of digestion
b. waste products of metabolism
c. only water
d. only water and proteins
b. waste products of metabolism
The renal pelvis
a. is formed by the union of minor calyces
b. channels urine toward the renal pyramids
c. contains collecting tubules
d. leads to the ureter
d. leads to the ureter
The kidneys help control blood pressure by the secretion of
a. erythropoietin
b. angiotensin
c. aldosterone
d. renin
d. renin
Sodium is moved out of the cells of the proximal convoluted tubule and into the interstitial fluid by the process of
a. diffusion
b. facilitated diffusion
c. active transport
d. osmosis
c. active transport
The outer region of the three-layered sheet which surrounds the kidney is the
a. renal fascia
b. adipose capsule
c. renal capsule
d. peritoneum
a. renal fascia
In renal interstitial fluid
a. sodium chloride has the same concentration from cortex to medulla
b. sodium chloride concentration decreases from cortex to medulla
c. water concentration increases from cortex to medulla
d. sodium chloride concentration increases from cortex to medulla
d. sodium chloride concentration increases from cortex to medulla
Filtration of blood
a. occurs in the glomerulus
b. occurs in the renal tubules
c. increases systemic blood pressure
d. causes H+ and K+ to concentrate in blood
a. occurs in the glomerulus
The loop of Henle is associated with
a. filtration
b. reabsorption
c. secretion
d. assimilation
b. reabsorption
A function of the kidney is to
a. remove nutrients from the blood
b. remove microorganisms from the blood
c. remove metabolic wastes from the blood
d. add vitamins and rare ions to the blood
c. remove metabolic wastes from the blood
Which of the following molecules cannot pass the filtration membranes in the kidneys?
a. sodium ions
b. glucose
c. amino acids
d. large proteins
d. large proteins
The innermost portion of the three-layered sheet that protects the kidney is the
a. renal fascia
b. adipose capsule
c. renal capsule
d. peritoneum
c. renal capsule
The greatly expanded part of the ureter inside the kidney is the
a. renal sinus
b. major calyx
c. minor calyx
d. renal pelvis
d. renal pelvis
Reabsorption is the movement of molecules from the _____ into the _____
a. glomerulus, renal tubule
b. tissues, distal convoluted tubule
c. renal tubules, peritubular capillaries
d. proximal convoluted tubule, distal convoluted tubule
c. renal tubules, peritubular capillaries
Very little water reabsorption occurs in the
a. thick ascending loop of Henle
b. proximal convoluted tubule
c. thin descending loop of Henle
d. collecting ducts
a. thick ascending loop of Henle
Sodium ions move into principal cells of the collecting duct by
a. secondary active transport
b. osmosis
c. sodium pumps
d. diffusion
d. diffusion
Glomerular filtrate is produced as a result of
a. reabsorption
b. hydrostatic pressure
c. tubular secretion
d. facilitated diffusion
b. hydrostatic pressure
The external opening of the urinary system is the
a. anus
b. urethra
c. external urethral orifice
d. vaginal orifice
c. external urethral orifice
The kidneys secrete the hormone erythropoietin which functions to
a. regulate blood pressure
b. activate vitamin D
c. concentrate salt in the nephron
d. control the rate of red blood cell production
d. control the rate of red blood cell production
Which of the following accurately represents the pathway of fluid through a juxtamedullary nephron?
a. proximal convoluted tubule, distal convoluted tubule, descending loop of Henle, ascending loop of Henle
b. proximal convoluted tubule, descending loop of Henle, ascending loop of Henle, distal convoluted tubule
c. distal convoluted tubule, descending loop of Henle, ascending loop of Henle, proximal convoluted tubule
d. distal convoluted tubule, ascending loop of Henle, descending loop of Henle, proximal convoluted tubule
b. proximal convoluted tubule, descending loop of Henle, ascending loop of Henle, distal convoluted tubule
Urine reaches the urinary bladder through the
a. urethra
b. external urethral orifice
c. ureter
d. renal vein
c. ureter
The nephron has two parts. They are the
a. glomerulus and renal tubule
b. capsule and loop of Henle
c. glomerulus and peritubular capillaries
d. renal corpuscle and renal tubule
d. renal corpuscle and renal tubule

























