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Urinary system

Total questions: 52

Worksheet time: 46mins

Name
Class
Date
1.
In addition to water, the principal components of urine are
a)
amino acids and fatty acids
b)
urea and salts
c)
ammonia and bile
d)
hydrochloric acid and bases
2.
Which structure is correctly paired with its function?
a)
urethra–eliminates urine from the bladder
b)
neuron–filters the blood
c)
ventricle–pumps blood directly into atria
d)
liver–produces intestinal amylase
3.
After reabsorption in nephrons is completed, the fluid that is left in the tubules is transported to the
a)
Bowman's capsule
b)
circulatory system
c)
urinary bladder
d)
bile duct
4.
The diagram represents a nephron. Which process takes place in region A?
a)
Proteins are converted to urea.
b)
Substances are filtered out of the glomerulus.
c)
Urine is stored temporarily.
d)
Water is reabsorbed into the blood.
5.

The excretory system is responsible for moving toxic wastes, dissolved molecules, and excess heat. You would conclude that the excretory system contributes to

a)

circulating molecules around the body

b)

maintaining homeostasis in the body

c)

producing egg and sperm cells in the body

d)

gas exchange

6.
Which sequence represents the correct pathway for the removal of urine from the human body?
a)
kidney → ureter → urinary bladder → urethra
b)
kidney → urethra → urinary bladder → ureter
c)
ureter → kidney → urinary bladder → urethra
d)
urethra → kidney → urinary bladder → ureter
7.
In humans, the organ that most directly regulates the concentration of water in the blood is the
a)
heart
b)
liver
c)
pancreas
d)
kidney
8.
In humans, the ureter transports urine from the
a)
blood to the kidney
b)
liver to the kidney
c)
kidney to the urinary bladder
d)
urinary bladder to outside the body
9.
As urine is excreted, muscle contractions of the urinary bladder will cause the urine to pass into the
a)
ureter
b)
glomerulus
c)
urethra
d)
Bowman's capsule
10.
What is the principal function of the excretory structure indicated by letter X in the diagram?
a)
reabsorption
b)
filtration
c)
storage
d)
egestion
11.
The nephron is the structural unit of the human
a)
lung
b)
liver
c)
kidney
d)
intestine
12.
What is the main function of a nephron?
a)
It breaks down red blood cells to form nitrogenous wastes.
b)

It filters waste products from the blood.

c)
 It forms urea from the waste products of protein metabolism.
d)
It absorbs digested food from the contents of the small intestine.
13.
Which organ system removes cellular wastes as the result of cellular respiration?
a)
nervous
b)
digestive
c)
excretory
d)
circulatory
14.
What is the function of the urethra?
a)
It filters urea out of the bloodstream
b)
It delivers urine from the bladder to the outside world
c)
It transfers urine from the kidneys to the bladder
d)
It prevents urine from leaking out of the bladder
15.

Excretion is...

a)

The removal of substances from the body

b)

The removal of waste products from the body

c)

The removal of faeces from the body

d)

The release of enzymes or hormones by a gland

16.
How many kidneys do you have?
a)
1
b)
3
c)
5
d)
2
17.
Which of the following parts is not found in the urinary system?
a)
Ureters
b)
Urethra
c)
Bladder
d)
Rectum 
18.

The organ that removes metabolic wastes including urea, excess water, and salts from the blood.

a)

lung

b)

liver

c)

kidney

d)

colon

19.
The medulla, cortex and pelvis are all part of the
a)
nervous system
b)
nephron
c)
kidney
d)
excretory system
20.

Which structure is a hollow muscular sac?

a)

Bladder

b)

Kidney

c)

Ureter

d)

Urethra

21.
What is #2?
a)
Kidney
b)
Ureters
c)
Bladder
d)
Urethra
22.
What do kidneys filter?
a)
ammonia
b)
nitrogenous wastes
c)
urine
d)
blood
23.
There are two kidneys, two ureters, one urinary bladder, and one urethra.
a)
True
b)
False
24.

Which is not a function of the urinary system?

a)

filtration

b)

waste storage and removal

c)

homeostasis maintenance

d)

hormone production

25.

Each kidney contains over 1 million of these microscopic units

a)

adrenal glands

b)

glomeruli

c)

neurons

d)

nephrons

26.

The ________________ arteries supply the kidneys with blood.

a)

Renal

b)

Urethral

c)

Pulmonary

d)

Pelvic

27.

UTI stands for:

a)

Upper respiratory infection

b)

Upper tract infection

c)

Urinary tract infection

28.

Urinary tract infections are often diagnosed by which one?

a)

Bladder failure

b)

Decreased urination

c)

Bacteria in the urine

d)

Nephron death

29.

What is not usually a symptom of a UTI?

a)

frequent need to urinate

b)

painful/burning sensation when urinating

c)

dark urine

d)

blood in urine

e)

cramps

30.

Incontinence is when you can't hold in your urine

a)

True

b)

False

31.

The passage of blood through a semipermeable membrane to rid the blood of harmful wastes, extra salt, and water using an outside device when the kidneys are in failure.

a)

Dialysis

b)

Cystitis

c)

Pyelitis

32.

Men have a longer urethra than women, which is why they are less likely to get a UTI

a)

True

b)

False

33.

Which of the following is NOT a function of the urinary system?

a)

Regulate blood volume

b)

Regulate ion/ mineral levels in the blood

c)

Maintain pH balance

d)

Store and transport calcium

34.

Where does FILTRATION take place in the nephron?

a)

Glomerulus

b)

Bowman's Capsule

c)

PCT

d)

Collecting Duct

35.

#4 Indicates which structure:

a)

Renal medulla

b)

Urethra

c)

Ureter

d)

Nephron

36.

Which sequence represents the correct order that a molecule of urea will pass through in the urinary system?

a)

Bowman’s capsule, renal tubules, collecting duct, ureter, bladder, urethra

b)

glomerulus, Bowman’s capsule, renal tubules, collecting duct, ureter, bladder, urethra

c)

Bowman’s capsule, glomerulus, renal tubules, ureter, collecting duct, bladder, urethra

d)

glomerulus, Bowman’s capsule, renal tubules, collecting duct, urethra, bladder, ureter

37.
Which stage of urine production involves returning water, nutrients, and electrolytes to the bloodstream?
a)
filtration
b)
excretion
c)
secretion
d)
reabsorption 
38.
What C-shaped structure in the nephron surrounds the glomerulus?
a)
Bowman's capsule
b)
bladder
c)
renal pelvis
d)
hilum
39.

Which stage of urine production involves adding ammonia, uric acid, and other waste substances directly into the renal tubule?

a)

reabsorption

b)

filtration

c)

secretion

d)

excretion

40.

Where in the kidney the glomeruli are found?

a)

Renal Medulla

b)

Renal Pelvis

c)

Renal Cortex

41.

What is A correct order of the steps of function within the nephron?

a)

Secretion, Reabsorption, Filtration

b)

Reabsorption, Secretion, Filtration

c)

Filtration, Reabsorption, Secretion

d)

Secretion, Filtration, Reabsorption

42.

What percentage of total blood volume passes through the kidneys each minute?

a)

10%

b)

1%

c)

20%

d)

50%

43.

Where does most reabsorption occur?

a)

afferent arteriole

b)

renal vein

c)

distal tubule

d)

proxial tubule

44.

Which substance would NOT normally be secreted in urine?

a)

glucose

b)

urea

c)

creatinine

d)

uric acid

45.

The external urethral sphincter is made of skeletal muscle, and therefore is controlled voluntarily

a)

true

b)

false

46.

what is another name for urination?

a)

defecation

b)

micturition

c)

secretion

d)

reabsorption

47.

Which of the following is not a function of the kidneys?

a)

maintain homeostasis

b)

excreting nitrogen containing wastes

c)

absorb nutrients from food

d)

control osmolarity

e)

control blood pH

48.

What is the hormone that causes kidneys to reabsorb more water in order to conserve water in the body? This will produce more concentrated urine.

a)

estrogen

b)

seratonin

c)

cortisol

d)

oxytocin

e)

antidiuretic hormone

49.

What is the hormone which regulates salt and water balance in order to manage blood pressure?

a)

insulin

b)

testosterone

c)

calcitonin

d)

aldosterone

50.

Hard mineral or salt deposits that form in the kidneys. These cause severe pain.

a)

kidney stones

b)

renal cell carcinoma

c)

polycystic kidney disease

d)

UTI

51.

Use of a machine to filter blood in patients with kidney failure.

a)

catheterization

b)

incontinence

c)

lithotripsy

d)

dialysis

52.

Loss of ability to control urination or defecation.

a)

dialysis

b)

incontinence

c)

diuretic

d)

urinary retention

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