Lesson 5-1: Introduction to Urinalysis
TRUE/FALSE
1. The inner portion of an organ is called the cortex.
ANS: F PTS: 1
2. Bowman’s capsule is the portion of the nephron that receives the glomerular filtrate.
ANS: T PTS: 1
3. The medulla is the central or inner portion of an organ.
ANS: T PTS: 1
4. The tube carrying urine from the urinary bladder to the outside is the ureter.
ANS: F PTS: 1
5. Untreated strep A infections will have no effect on kidney health.
ANS: F PTS: 1
6. The glomeruli produce approximately 180 liters of filtrate daily in a healthy adult.
ANS: T PTS: 1
7. Some solutes found in normal urine are vitamins, uric acid, bile pigments, and calcium.
ANS: T PTS: 1
8. Erythropoietin stimulates red blood cell synthesis.
ANS: T PTS: 1
, 9. Urea is the solute in highest concentration in the urine of a healthy adult.
ANS: T PTS: 1
10. Urinary tract infections most commonly occur in the ureter and can be caused by bacteria, yeasts, or
protozoan parasites.
ANS: F PTS: 1
MULTIPLE CHOICE
1. The tube carrying urine from the kidney to the urinary bladder is the:
a. urethra c. ureter
b. renal tubule d. loop of Henle
ANS: C PTS: 1
2. The concave region of the kidney where lymphatic vessels, blood vessels, and nerves enter or exit is
the:
a. cortex c. renal hilus
b. renal pelvis d. medulla
ANS: C PTS: 1
3. An organ for the temporary storage of urine is the:
a. kidney c. ureter
b. bladder d. urethra
ANS: B PTS: 1
4. The canal through which urine is carried from the urinary bladder to the outside is the:
a. urethra c. ureter
b. bladder d. renal tubule
ANS: A PTS: 1
5. Each kidney has approximately how many nephrons?
a. 1 c. 1,000
b. 1,000,000 d. 10,000
ANS: B PTS: 1
6. Each nephron is composed of:
a. a glomerulus and Bowman’s capsule
b. renal hilus and renal pelvis
c. renal cortex and medulla
d. a glomerulus and its associated medulla
e. a glomerulus and its associated renal tubule
ANS: E PTS: 1
7. The major functions of the kidney include:
a. regulation of acid-base balance
b. regulation of body temperature
c. regulation of blood volume and composition
, d. production of the majority of hormones in the body
ANS: A PTS: 1
8. In health, the glomerular filtrate can contain:
a. white blood cells d. protein molecules
b. urea e. all of the above
c. red blood cells
ANS: B PTS: 1
9. Which is true of the hormones that affect renal function?
a. Calcitonin increases calcium reabsorption and works with vitamin D 3.
b. Antidiuretic hormone regulates water reabsorption by the kidneys.
c. Atrial natriuretic peptide is produced by the kidney.
d. Parathyroid hormone regulates electrolytes.
ANS: B PTS: 1
10. Which of the following hormones is (are) produced by the kidneys?
a. erythropoietin c. active vitamin D3
b. renin d. all of the above
ANS: D PTS: 1
COMPLETION
1. Inflammation of the renal pelvis is called ____________________.
ANS: pyelitis
PTS: 1
2. Bowman’s capsule is the portion of the nephron that receives the glomerular ____________________.
ANS: filtrate
PTS: 1
3. A substance that is toxic or destructive to kidney cells is ____________________.
ANS: nephrotoxic
PTS: 1
4. The organ in which urine is formed is called the ____________________.
ANS: kidney
PTS: 1
5. A variety of waste products are eliminated from the body through the formation and excretion of
____________________.