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URINARY (EXCRETORY) SYSTEM- Ayre

Total questions: 48

Worksheet time: 24mins

Name
Class
Date
1.

What is the main function of the kidneys?

a)

The main function of the kidneys is to act as homeostatic organs by excreting nitrogenous waste, toxins, and drugs from the body.

b)

The main function of the kidneys is to produce insulin for glucose regulation.

c)

The main function of the kidneys is to aid in the digestion of proteins in the stomach.

d)

The main function of the kidneys is to control voluntary muscle movements.

2.

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

a)

Regulate volume

b)

Maintain salt/water balance

c)

Produce insulin

d)

Maintain acid/base balance

3.

What do kidneys excrete?

a)

Nitrogenous (Nitrogen containing) waste, toxins, and drugs from the body.

b)

Oxygen and carbon dioxide.

c)

Digestive enzymes and hormones.

d)

Glucose and vitamins.

4.

The kidneys produce the enzyme renin, which regulates blood pressure.

a)

True

b)

False

5.

Name two other organs of the urinary system besides the kidneys.

a)

Ureters, urinary bladder, urethra

b)

Liver, pancreas, spleen

c)

Heart, lungs, brain

d)

Stomach, intestines, gallbladder

6.

Which hormone produced by the kidneys stimulates RBC production?

a)

Erythropoietin

b)

Insulin

c)

Thyroxine

d)

Cortisol

7.

Fill in the blank: Kidney cells convert ______ to its active form.

a)

Vitamin D (Vit D)

b)

Vitamin C (Vit C)

c)

Vitamin B12

d)

Vitamin A

8.

Where are the kidneys actually located?

a)

Lower back

b)

Superior lumbar region (From T12-L3)

c)

Thoracic cavity

d)

Pelvic region

9.

Fill in the blank: The right kidney is slightly lower than the left due to being crowded by the _______.

a)

liver

b)

stomach

c)

spleen

d)

pancreas

10.

What are the three protective layers of the kidney?

a)

Fibrous capsule, Fat capsule, Renal Fascia

b)

Renal cortex, Renal medulla, Renal pelvis

c)

Adrenal gland, Renal vein, Renal artery

d)

Cortex, Medulla, Columns

11.

Fill in the blank: The outer, lighter in color region of the kidney is called the _______.

a)

Renal Cortex

b)

Renal Medulla

c)

Renal Pelvis

d)

Ureter

12.

Which region of the kidney contains triangular regions with striped appearance called renal pyramids?

a)

Renal Cortex

b)

Renal Medulla

c)

Renal Pelvis

d)

Renal Fascia

13.

Fill in the blank: The funnel-shaped tube in the kidney is called the _______.

a)

Renal pelvis

b)

Ureter

c)

Nephron

d)

Glomerulus

14.

What is the function of calyces in the kidney?

a)

Filter blood

b)

Enclose the tip of the pyramid and collect urine

c)

Produce hormones

d)

Absorb nutrients

15.

Fill in the blank: Each kidney has over _______ nephrons.

a)

1 million

b)

100 thousand

c)

10 million

d)

500 thousand

16.

What are the two main structures of a nephron?

a)

Renal corpuscle and Renal tubule

b)

Renal cortex and Renal medulla

c)

Renal pelvis and Calyces

d)

Renal artery and Renal vein

17.

Which of the following is NOT one of the main processes of urine formation?

a)

A) Glomerular Filtration

b)

B) Tubular Reabsorption

c)

C) Tubular Secretion

d)

D) Cellular Respiration

18.

Glomerular filtration is a ________, passive process. Fluid (called FILTRATE) passes from the blood into the glomerular capsule.

a)

Non-selective

b)

Selective

c)

Active

d)

Regulated

19.

Blood cells and proteins are typically too large to pass through the filtration membrane during glomerular filtration.

a)

True

b)

False

20.

Tubular Reabsorption involves reclaiming useful substances such as water, glucose, ions, and amino acids and returning them to the blood.

a)

True

b)

False

21.

Which of the following is NOT a common nitrogenous waste product found in urine?

a)

Urea

b)

Uric acid

c)

Creatinine

d)

Glucose

22.

Urea is formed by the liver as an end product of ________ breakdown when amino acids are used to produce energy.

a)

protein

b)

carbohydrate

c)

fat

d)

nucleic acid

23.

How much blood plasma is filtered in 24 hours?

a)

1-1.8 liters

b)

10-20 liters

c)

150-180 liters

d)

500 liters

24.

Urine color ranges from clear/pale to deep yellow due to the destruction of hemoglobin, producing which pigment?

a)

Melanin

b)

Urochrome

c)

Bilirubin

d)

Hemoglobin

25.

Urine is sterile and slightly aromatic if fresh. Over time, urine takes on the ______ smell due to bacterial action.

a)

ammonia

b)

sulfur

c)

chlorine

d)

acetone

26.

What is the typical pH of urine?

a)

About 6 (slightly acidic)

b)

About 2 (highly acidic)

c)

About 8 (slightly alkaline)

d)

About 12 (highly alkaline)

27.

A high protein diet and whole wheat cause urine to be ______, while a vegetarian diet causes urine to be ______.

a)

acidic; alkaline

b)

alkaline; acidic

c)

neutral; acidic

d)

alkaline; neutral

28.

Specific gravity in lab tests measures how heavy urine is compared to distilled water. Is the specific gravity low or high if a person drinks a lot of water, uses diuretics, or has chronic renal fever?

a)

Low

b)

High

c)

Normal

d)

Variable

29.

How many slender tubes (ureters) carry urine from the kidney to the bladder?

a)

2

b)

1

c)

3

d)

4

30.

What is the role of the ureters?

a)

Carries urine from kidney to the bladder

b)

Carries blood from kidney to the heart

c)

Carries urine from bladder to outside the body

d)

Carries food from stomach to intestines

31.

How many openings does the bladder have?

a)

3 (2 ureters and 1 urethra)

b)

2 (1 ureter and 1 urethra)

c)

4 (2 ureters and 2 urethras)

d)

1 (1 urethra)

32.

A moderately full bladder holds about ______ cc (1 pt), but can hold about ______ cc.

a)

500; 1000

b)

250; 500

c)

750; 1500

d)

100; 200

33.

What is the term for the act of emptying the bladder?

a)

Micturition

b)

Filtration

c)

Absorption

d)

Secretion

34.

Which sphincter of the urethra is voluntary?

a)

External sphincter

b)

Internal sphincter

c)

Anal sphincter

d)

Pyloric sphincter

35.

What are the three factors that composition of blood depends on?

a)

Diet, cellular metabolism, and urine output.

b)

Age, gender, and height.

c)

Blood type, heart rate, and temperature.

d)

Exercise, sleep, and stress levels.

36.

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

a)

Excrete nitrogen containing waste

b)

Maintain H2O balance of blood

c)

Maintain electrolyte balance of blood

d)

Produce insulin

37.

Fill in the blank: H2O accounts for ___ or more of body weight.

a)

½

b)

¼

c)

d)

38.

The posterior pituitary gland releases ADH (Anti diuretic hormone) to prevent excess water loss.

a)

True

b)

False

39.

What hormone helps regulate blood composition and volume by regulating sodium content?

a)

Aldosterone

b)

Insulin

c)

Thyroxine

d)

Adrenaline

40.

Which condition is described as abnormally low urinary output (UOP) of about 100-400 mL/day?

a)

Oliguria

b)

Polyuria

c)

Anuria

d)

Nocturia

41.

Anuria is defined as less than 100 ml/day of urine output.

a)

True

b)

False

42.

Which of the following could indicate glomerular blood pressure is too low, a transfusion reaction, acute inflammation, or crushing injuries?

a)

Oliguria

b)

Anuria

c)

Both

43.

What is another name for pyelonephritis?

a)

Pyelitis

b)

Nephrosis

c)

Cystitis

d)

Glomerulonephritis

44.

What is the inflammation of the urethra called?

a)

Urethritis

b)

Cystitis

c)

Nephritis

d)

Prostatitis

45.

What is the inflammation of the bladder called?

a)

Cystitis

b)

Nephritis

c)

Urethritis

d)

Pyelonephritis

46.

What is the inability to control the external sphincter called?

a)

Incontinence

b)

Constipation

c)

Retention

d)

Obstruction

47.

What is the term for the opposite of incontinence?

a)

Retention

b)

Excretion

c)

Urination

d)

Defecation

48.

What is the medical term for enlargement of the prostate (located by the bladder)?

a)

Hyperplasia

b)

Nephritis

c)

Cystitis

d)

Urethritis