224 Flashcards
The volume of plasma filtered per unit time is the
renal blood flow
renal plasma flow
glomerular filtration rate
clearance
glomerular filtration rate
All of the following are normal constituent of urine EXCEPT
hydrogen ions
urea
proteins
salts
proteins
Assuming a normal cardiac output and renal blood flow, what is the glomerular filtration rate?
Seventy (70) ml/min
One-hundred and twenty (125) ml/min
Six-hundred and sixty (660) mI/min
One-thousand-two hundred (1,200) ml/min
Five and a quarter (5.25) L/min
125
Urine is conducted from the kidneys to the urinary bladder through a structure called
O renal column
O renal pelvis
O urethra
O ureter
ureter
Substances travel from the glomerulus into Bowman’s capsule by the process of
diffusion
active transport
filtration
osmosis
filtration
The outer most zone of the kidney is the
cortex
medulla
renal pyramid
major calyx
Cortex
The primary site of nutrient filtration is the
O glomerulus
O proximal tubule
O distal tubule
O collecting duct
glomerulus
Which of the following portions of the nephron is impermeable to water?
O Glomerulus
O Descending loop of Henle
O Ascending loop of Henle
O Collecting ducts
Ascending loop of Henle
All of the following processes are involved in urine formation EXCEPT
filtration
catabolism
reabsorption
secretion
catabolism
The initial step in urine formation is
O glomerular filtration
O tubular reabsorption
O tubular secretion
O concentration of urine
glomerular filtration
Secretion of aldosterone will results in ______ reabsorption and. _______ secretion.
sodium/chloride
sodium/water
sodium/potassium
sodium/calcium
sodium/potassium
The clearance of compound Y is less than the glomerular filtration rate (GFR) for compound Y. Compound Y is
only filtered
filtered and reabsorbed
filtered and secreted
secreted and reabsorbed
filtered and reabsorbed
ADH has the greatest effect on water reabsorption in the
proximal tubules
loop of Henle
collecting duct
ureter
collecting duct
Which of the following statement best describes secretion?
The movement of solutes from the glomerulus into the proximal tubule
The movement of solutes from the proximal tubule into the blood
The movement of solutes from the blood into the tubule
The movement of solutes from the tubule into the ureter
The movement of solutes from the blood into the tubule
In a normal individual, all of the following nitrogenous wastes resulting from protein catabolism may be detected in the urine EXCEPT
Urea
ammonia
creatinine
amino acids
amino acids
Which portion of the nephron is impermeable to water?
The glomerulus
The proximal convoluted tubule
The ascending lop of Henle
The distal convoluted tubule
None of the above
The ascending lop of Henle
Which of the following substances is released by the Juxtaglomerular cells?
Cortisol
ADH
Aldosterone
Renin
Renin
Aldosterone will have its greatest physiological effect on the
glomerulus
proximal tubules
loop of Henle
distal tubules
collecting ducts
distal tubules
Drinking a large volume of water will
decrease urine osmolarity
stimulate of ADH secretion
stimulate of aldosterone secretion
all of the above
decrease urine osmolarity
Which of the following cells of the Juxtaglomerular apparatus is found in the distal tubule?
Macula lutea cells
Juxtaglomerular cells
Macula densa cells
Macula fovea cells
Macula densa cells
The shape of the kidney could best be described as
bean-shaped
pear-shaped
pea-shaped
potato-shaped
bean-shaped
The volume of blood flowing through the kidneys is _
that of cardiac output.
One-fifth (1/5)
One-third (1/3)
One-half (1/2)
Two-third (2/3)
Three-fourth (3/4)
One-fifth (1/5)
Which portion of the nephron is primarily involved in reabsorption?
O Glomerulus
O Proximal tubules
O loop of Henle
O Distal tubules
O Collecting tubules
Proximal tubules
Which portion of the renal corpuscle is impermeable to water?
O The glomerulus
O The proximal convoluted tubule
O The ascending loop of Henle
O The distal convoluted tubule
O None of the above
None of the above
Relating to Starling’s hypothesis, which of the following factors has the greatest effect on water reentering the capillaries?
hydrostatic pressure
oncotic pressure
electrostatic gradient
concentration gradient
oncotic pressure
A decrease in blood osmolarity results in which of the following?
Increased AH secretion
Increased permeability of the collecting ducts to water
Decreased urine output
All of the above
None of the above
None of the above
Secretion of this hormone will result in an increase in urine volume.
ANF
ADH
Aldosterone
None of the above - all result in reabsorption of water
ANF
The incidence of urinary tract infection is more comment in women than in men. Reasons for this misfortune include
the female urethra is much shorter than male
the urethra is enclosed within the labia minora
the surrounding environment is moist and damp
alL of the above
All of the above
Dilatation of the afferent arteriole will results in (assuming no changes in the efferent arteriole)
an increase in glomerular capillary pressure
an increase in net filtration pressure
an increase in glomerular filtration rate
all of the above
none of the above
All of the above
The primary function of the collecting tubules is
filtration
secretion
Reabsorption
concentration of urine
concentration of urine
The function of the urinary system is to
O Maintain homeostasis
O Excrete waste products
O Secrete hormone that stimulates production of red blood cells
O Maintain fluid and electrolyte balance
O All of the above
All of the above
The urinary system organ that removes waste products from the body and helps regulate blood pressure is the
Liver
Heart
Kidneys
Lungs
Rectum
Kidneys
What is the principal function of the ureter?
Transport blood to the efferent arterioles
Transport urine from the renal pelvis into the urinary bladder
Transport glucose and protein into the renal pelvis
None of the above
Transport urine from the renal pelvis into the urinary bladder
What structure receives urine flowing down the ureters?
O Renal pelvis
© Ureter
O Urethra
© Urinary bladder
Urinary bladder
The small tube leading from the floor of the urinary bladder to the exterior of the body is the
O Renal pelvis
O Ureter
O Urethra
O Urinary bladder
Urethra
How much blood enters the renal arteries per minute?
One-hundred and eighty liters (180 L)
One-thousand two hundred milliliters (1200 mL)
Five hundred milliliters (500 mL)
Six hundred and sixty milliliters (660 mL)
One hundred and twenty-five milliliters (125 mL)
One-thousand two hundred milliliters (1200 mL)
In the kidneys, the largest volume of water reabsorption occurs in which of the following?
© Glomerular capillaries
O Collecting duct
O Proximal convoluted tubules
O Distal convoluted tubules
O Loop of Henle
Proximal convoluted tubules
There are three basic renal processes for urine formation. Which of the following is NOT one of these processes?
Excretion
Tubular reabsorption
Tubular secretion
Glomerular filtration
Excretion
The volume of plasma filtered per unit time is the
renal blood flow
renal plasma flow
glomerular filtration rate
clearance
glomerular filtration rate
All of the following are normal constituent of urine EXCEpf
hydrogen ions
proteins
Urea
salts
proteins
Assuming a normal cardiac output and renal blood flow, what is the glomerular filtration rate?
Seventy (70) mI/min
One-hundred and twenty (125) mI/min
Six-hundred and sixty (660) ml/min
One-thousand-two hundred (1,200) ml/min
Five and a quarter (5.25) L/min
125
Urine is conducted from the kidneys to the urinary bladder through a structure called
renal column
renal pelvis
urethra
ureter
ureter
Substances travel from the glomerulus into Bowman’s capsule by the process of
diffusion
active transport
filtration
osmosis
filtration
The outer most zone of the kidney is the
cortex
medulla
renal pyramid
major calyx
Cortex
The primary site of nutrient filtration is the
glomerulus
proximal tubule
distal tubule
collecting duct
glomerulus
Which of the following portions of the nephron is impermeable to water?
Glomerulus
Descending loop of Henle
Ascending loop of Henle
Collecting ducts
Ascending loop of Henle