WorksheetsUrinary System Quiz A
Total questions: 20
Worksheet time: 55mins
An increase in the permeability of the cells of the collecting tubule to water is due to a(n) ________.
decrease in the production of ADH
increase in the production of ADH
increase in the production of aldosterone
decrease in the concentration of the blood plasma
The path urine takes after it is formed until it leaves the body is the urethra, urinary bladder, and finally the ureter.
The functional and structural unit of the kidneys is the ________.
nephron
nephron loop
glomerular capsule
capsular space
The urinary bladder is composed of ________ epithelium.
transitional
simple squamous
stratified squamous
pseudostratified columnar
The position of the kidneys behind the peritoneal lining of the abdominal cavity is described by the term retroperitoneal.
The kidneys are stimulated to produce renin ________.
when the peritubular capillaries are dilated
when the pH of the urine decreases
by a decrease in the blood pressure
when the specific gravity of urine rises above 1.10
Which of the choices below is NOT a function of the urinary system?
helps maintain homeostasis by controlling the composition, volume, and pressure of blood
regulates blood glucose levels and produces hormones
maintains blood osmolarity
eliminates solid, undigested wastes and excretes carbon dioxide, water, salts, and heat
If the GFR [glomerular filtration rate] is too low, needed substances may pass so quickly through the renal tubules that they are not absorbed and instead are lost in the urine.
Which of the following is incorrect?
The kidneys produce a large volume of dilute urine when overhydrated.
The kidneys produce a small volume of concentrated urine when dehydrated.
Urine concentration and volume are determined by countercurrent mechanisms
The concentration of urine is lower when urine volume is reduced.
Which of the following acts as the trigger for the initiation of micturition (voiding/urinating)?
the stretching of the bladder wall
motor neurons
the pressure of the fluid in the bladder
the sympathetic efferents
The function of angiotensin II is to ________.
constrict arterioles and increase blood pressure
decrease the production of aldosterone
decrease arterial blood pressure
decrease water absorption
Which of the following hormones acting on the collecting duct is most responsible for retaining sodium ions in the blood?
antidiuretic hormone
parathyroid hormone
atrial natriuretic peptide
aldosterone
Place the following in correct sequence from the formation of a drop of urine to its elimination from the body.
1. major calyx
2. minor calyx
3. nephron
4. urethra
5. ureter
6. collecting duct
3, 1, 2, 6, 5, 4
6, 3, 2, 1, 5, 4
2, 1, 3, 6, 5, 4
3, 6, 2, 1, 5, 4
The mechanism of water reabsorption by the renal tubules is ________.
active transport
osmosis
filtration
cotransport with sodium ions
Identify the letter representing the collecting duct.
A
B
C
D
E
Glomerular filtration rate can be controlled by manipulating one major variable, which is ________.
systemic blood pressure
the renin-angiotensin-aldosterone mechanism
glomerular hydrostatic pressure
activation of sympathetic nerve fibers
The entire responsibility for urine formation lies with the nephron.
Which of the choices below is a function of the nephron loop?
form a large volume of very concentrated urine or a small volume of very dilute urine
form a large volume of very dilute urine or a small volume of very concentrated urine
absorb electrolytes actively and water by osmosis in the same segments
absorb water and electrolytes into the tubular network
Identify the letter representing the glomerulus.
A
B
C
D
E
Identify the letter representing the nephron loop.
A
B
C
D
E
