Chapter 23 test Flashcards
Micturition occurs when the ______ contracts.
a. detrusor muscle
b. internal urethral sphincter
c. external urethral sphincter
d. muscularis of the ureter
e. all of the above
a. detrusor muscle
The compact ball of capillaries in a nephron is called
a. the nephron loop
b. the peritubular plexus
c. the renal corpuscle
d. the glomerulus
e. the vasa recta
d. the glomerulus
Which of these is the most abundant nitrogenous waste in the blood?
a. uric acid
b. urea
c. ammonia
d. creatinine
e. albumin
b. urea
Which of these lies closest to the renal cortex?
a. the parietal peritoneum
b. the renal fascia
c. the fibrous capsule
d. the perirenal fat capsule
e. the renal pelvis
c. the fibrous capsule
most sodium is reabsorbed from the glomerular filtrate by
a. vasa recta
b. proximal convoluted tubule
c. distal convoluted tubule
d. the nephron loop
e. collecting duct
b. proximal convoluted tubule
A glomerulus and glomerular capsule make up one
a. renal capsule
b. renal corpuscle
c. kidney lobule
d. kidney lobe
e. nephron
b. renal corpuscle
the kidney has more _______ than any of the other structures listed.
a. arcuate arteries
b. minor calyces
c. medullary pyramids
d. afferent arterioles
e. collecting ducts
d. afferent arterioles
The renal clearance of \_\_\_\_\_\_\_ is normally 0. a. sodium b. potassium c. uric acid d. urea e, a.a.
e, a.a.
Beavers have relatively little need to conserve water and could therefore be expected to have _______ than humans do.
a. fewer nephrons
b. longer nephron loop
c. shorter nephron loop
d. longer collecting ducts
e. longer convoluted tubules
c. shorter nephron loop
increased ADH secretion should cause the urine to have
a. higher specific gravity
b. lighter color
c. higher pH
d. lover urea concentration
e. lower potassium concentration
a. higher specific gravity
The proximal convoluted tubule is not subject to hormonal influence. t or f
f
