BIOS 256: Week 4 - The Urinary System Exam Test with Answers Graded A+
Where are the kidneys located?
Posterior thoracic cavity
Anterior abdominal cavity
Posterior abdominal cavity.
Posterior abdominal cavity
Inferior pelvic cavity
Inferior abdominal cavity
Which body fluid is filtered by the kidneys?
Bile
Blood
Blood
Cerebrospinal fluid
Saliva
Feces
Each of these organs is a component of the urinary sys-
tem, except the
kidney
rectum
urinary bladder
rectum
ureter
urethra
Carries urine between the kidney and the bladder: Ureter
Carries urine between the bladder and the environment:
Determine if the statement is describing the ureter or the Urethra
urethra.
Carries urine between the kidney and the bladder: urethra The ureter and urethra are two structures that are com-
or ureter monly confused due to their similarity in spelling. The
Carries urine between the bladder and the environment: ureters are paired muscular tubes that will carry urine
urethra or ureter from the kidney to the bladder. The urethra is a single
tube that will carry urine out of the bladder towards the
environment.
,BIOS 256: Week 4 - The Urinary System Exam Test with Answers Graded A+
Renin
Which hormones are secreted by the kidneys? Select all
Erythropoietin
that apply.
Calcitriol
Renin
Erythropoietin
Aldosterone is secreted by the suprarenal (adrenal)
Calcitriol
glands. Angiotensin II is a blood pressure-regulating hor-
Aldosterone
mone that requires activation of angiotensinogen by renin
Angiotensin II
and angiotensin-converting enzymes.
The renal veins drain into the
Inferior vena cava
renal arteries
Veins do not drain into the arteries but rather into other
inferior vena cava
veins until the blood reaches the heart. The superior vena
segmental arteries
cava drains structures from above the heart whereas the
superior vena cava
kidneys are found in the abdominal cavity.
abdominal aorta
Renal corpuscle
Which component of the kidney is responsible for the
The renal corpuscle consists of three filtration membranes:
filtration of blood plasma?
the fenestrated endothelium of the glomerular capillaries,
Nephron tubule
the basal lamina, and the filtration slits created by the
Nephron loop
podocytes of the glomerular capsule.
Renal capsule
The nephron tubule, nephron loop, and collecting duct
Collecting duct
will participate in reabsorption and excretion. The renal
Renal corpuscle
capsule acts as a protective structure around the outside
of the kidney.
The ureters
Urine is carried from the kidneys to the urinary bladder
by
Note that although the ureters and urethra look similar
in name, they are very ditterent. The ureters are muscular
the blood vessels
tubes that extend from the kidneys and drain urine into
the lymphatics
the bladder, whereas the urethra carries urine from the
, BIOS 256: Week 4 - The Urinary System Exam Test with Answers Graded A+
bladder to the outside.
the ureters Blood vessels can conduct blood to the kidney, but not
the urethra the urine. Lymphatic vessels can aid in electrolyte balance,
the renal cortex but not urine transport. The renal cortex is an internal
structure of the kidneys but does not carry urine.
Which is a correct statement regarding the ureters?
The ureters are capable of peristalsis like that of the gas-
The epithelium is stratified squamous like the skin, which trointestinal tract.
allows a great deal of stretch.
Ureters allow for the direct voiding of urine into the envi- The ureters are muscular tubes that are lined with transi-
ronment. tional endothelium that lacks any sphincters. They connect
The ureter does not have a smooth muscle layer. the kidneys to the bladder, not the bladder to the outside
The ureters are capable of peristalsis like that of the gas- (urethra). Finally, somatic nerve endings are used to reg-
trointestinal tract. ulate skeletal muscle, but the ureters only have smooth
Ureters contain sphincters at the entrance to the bladder muscle, requiring autonomic regulation.
to prevent the backflow of urine.
excretes excess albumen molecules
The urinary system does all the following, except that it
The urinary system performs a variety of roles, includ-
excretes excess albumen molecules
ing regulation of blood volume, blood pH, nitrogenous
regulates blood volume
wastes, and electrolytes. However, albumen is an impor-
contributes to stabilizing blood pH
tant protein that the blood requires to maintain its colloid
eliminates organic waste products
osmotic pressure and thus, it should not be excreted with
regulates plasma concentrations of electrolytes
the urine.
Urea
The nitrogenous waste, ammonia, is usually converted to
a less toxic substance known as Ammonia and uric acid are both incredibly toxic sub-
stances and thus, these need to be converted into the less
amino acids
toxic urea in the kidneys.
urea
Amino acids carry nitrogen, but they are required for pro-
fatty acids
tein synthesis and are not inherently toxic. Fatty acids are
Where are the kidneys located?
Posterior thoracic cavity
Anterior abdominal cavity
Posterior abdominal cavity.
Posterior abdominal cavity
Inferior pelvic cavity
Inferior abdominal cavity
Which body fluid is filtered by the kidneys?
Bile
Blood
Blood
Cerebrospinal fluid
Saliva
Feces
Each of these organs is a component of the urinary sys-
tem, except the
kidney
rectum
urinary bladder
rectum
ureter
urethra
Carries urine between the kidney and the bladder: Ureter
Carries urine between the bladder and the environment:
Determine if the statement is describing the ureter or the Urethra
urethra.
Carries urine between the kidney and the bladder: urethra The ureter and urethra are two structures that are com-
or ureter monly confused due to their similarity in spelling. The
Carries urine between the bladder and the environment: ureters are paired muscular tubes that will carry urine
urethra or ureter from the kidney to the bladder. The urethra is a single
tube that will carry urine out of the bladder towards the
environment.
,BIOS 256: Week 4 - The Urinary System Exam Test with Answers Graded A+
Renin
Which hormones are secreted by the kidneys? Select all
Erythropoietin
that apply.
Calcitriol
Renin
Erythropoietin
Aldosterone is secreted by the suprarenal (adrenal)
Calcitriol
glands. Angiotensin II is a blood pressure-regulating hor-
Aldosterone
mone that requires activation of angiotensinogen by renin
Angiotensin II
and angiotensin-converting enzymes.
The renal veins drain into the
Inferior vena cava
renal arteries
Veins do not drain into the arteries but rather into other
inferior vena cava
veins until the blood reaches the heart. The superior vena
segmental arteries
cava drains structures from above the heart whereas the
superior vena cava
kidneys are found in the abdominal cavity.
abdominal aorta
Renal corpuscle
Which component of the kidney is responsible for the
The renal corpuscle consists of three filtration membranes:
filtration of blood plasma?
the fenestrated endothelium of the glomerular capillaries,
Nephron tubule
the basal lamina, and the filtration slits created by the
Nephron loop
podocytes of the glomerular capsule.
Renal capsule
The nephron tubule, nephron loop, and collecting duct
Collecting duct
will participate in reabsorption and excretion. The renal
Renal corpuscle
capsule acts as a protective structure around the outside
of the kidney.
The ureters
Urine is carried from the kidneys to the urinary bladder
by
Note that although the ureters and urethra look similar
in name, they are very ditterent. The ureters are muscular
the blood vessels
tubes that extend from the kidneys and drain urine into
the lymphatics
the bladder, whereas the urethra carries urine from the
, BIOS 256: Week 4 - The Urinary System Exam Test with Answers Graded A+
bladder to the outside.
the ureters Blood vessels can conduct blood to the kidney, but not
the urethra the urine. Lymphatic vessels can aid in electrolyte balance,
the renal cortex but not urine transport. The renal cortex is an internal
structure of the kidneys but does not carry urine.
Which is a correct statement regarding the ureters?
The ureters are capable of peristalsis like that of the gas-
The epithelium is stratified squamous like the skin, which trointestinal tract.
allows a great deal of stretch.
Ureters allow for the direct voiding of urine into the envi- The ureters are muscular tubes that are lined with transi-
ronment. tional endothelium that lacks any sphincters. They connect
The ureter does not have a smooth muscle layer. the kidneys to the bladder, not the bladder to the outside
The ureters are capable of peristalsis like that of the gas- (urethra). Finally, somatic nerve endings are used to reg-
trointestinal tract. ulate skeletal muscle, but the ureters only have smooth
Ureters contain sphincters at the entrance to the bladder muscle, requiring autonomic regulation.
to prevent the backflow of urine.
excretes excess albumen molecules
The urinary system does all the following, except that it
The urinary system performs a variety of roles, includ-
excretes excess albumen molecules
ing regulation of blood volume, blood pH, nitrogenous
regulates blood volume
wastes, and electrolytes. However, albumen is an impor-
contributes to stabilizing blood pH
tant protein that the blood requires to maintain its colloid
eliminates organic waste products
osmotic pressure and thus, it should not be excreted with
regulates plasma concentrations of electrolytes
the urine.
Urea
The nitrogenous waste, ammonia, is usually converted to
a less toxic substance known as Ammonia and uric acid are both incredibly toxic sub-
stances and thus, these need to be converted into the less
amino acids
toxic urea in the kidneys.
urea
Amino acids carry nitrogen, but they are required for pro-
fatty acids
tein synthesis and are not inherently toxic. Fatty acids are
