Week 3 Quiz Continued

1.

1 point

Kidney function is independent of blood pressure.

True

False

2.

1 point

How much of the renal filtrate is reabsorbed back into the blood?

40%

10%

99%

80%

3.

1 point

A sack like structure that temporarily holds formed urine is the

bladder

ureter

collecting tubule

nephron

4.

1 point

Angiotensin I is converted into the more potent vasoconstrictor Angiotensin II, by the Angiotensin Converting Enzyme, ACE. Where is ACE produced?

In the kidney nephrons.

In the lung capillaries.

In the adrenal medulla.

In the adrenal cortex.

5.

1 point

Which of the following statements is not true regarding diuretics?

They should be given to patients with congestive heart failure

They will reduce blood volume

They may decrease sodium reabsorption

They will decrease urine output

6.

1 point

Which of the fluid compartments of the body carries the highest amount of water?

Plasma

Extracellular

Interstitial

Intracellular

7.

1 point

The renal cortex contains the glomerulus and bowman's capsule

True

False

8.

1 point

What hormone is secreted by the muscle fibers in the heart's atrium?

Renin

ANH

ADH

Aldosterone

9.

1 point

Most sodium reabsorption takes place through

passive transport

diffusion

active transport

osmosis

10.

1 point

The modified cells found at the junction of the afferent arteriole and the distal convoluted tubule which influence blood pressure by secreting renin are

glomerulus

None of the above

pelvic epithelium

juxtaglomerular apparatus

11.

1 point

The renal system plays a major part in all of the following except:

Excretion of toxins

Acid - Base balance

Excretion of Carbon dioxide

Water balance

12.

1 point

In a non-diabetic person glucose is never found in urine.

True

False

13.

1 point

Which of the following renal mechanisms is primarily responsible for correcting acidosis?

Chloride secretion and potassium reabsorption

Hydrogen ion secretion and bicarbonate reabsorption

Potassium secretion and chloride reabsorption

Bicarbonate secretion and hydrogen reabsorption

14.

1 point

The function of the ureters is to drain urine from the renal pelvis to the urinary bladder.

True

False

15.

1 point

Which of the following are physiologically inactive?

Angiotensin I

Angiotensinogen

Angiotensin III

Angiotensin II

16.

1 point

Which of the following electrolytes are essential to muscle contraction and nerve impulse transmission?

Na+ and K+

K+ and Cl-

HCO3- and Cl-

17.

1 point

Aldosterone primarily______

decreases DCT K reabsorption

increases DCT Na reabsorption

decreases DCT Na reabsorption

increases DCT K reabsorption

18.

1 point

What substance is found in the proximal convoluted tubule?

Urine

Normal blood

Blood minus some of the fluid portion

Filtrate

19.

1 point

The renal cortex is the inner portion of the kidney.

True

False

20.

1 point

Which of the following hormones secreted by the kidney are responsible for stimulating red blood cell production?

Erythropoietin

Angiotensin

Aldosterone

ADH

21.

1 point

Substances with a threshold include glucose, amino acids, phosphates, and sulfates.

True

False

22.

1 point

The hormone ANH increases the excretion of ____ ions and _______:

Sodium; water

Glucose; water

Creatinine; water

Ammonia; water

23.

1 point

Increased aldosterone production causes

decreased water reabsorption in the kidneys

a decreased systemic blood pressure

the serum sodium to increase

the urine output to increase

24.

1 point

When the blood pressure decreases, the kidneys secrete:

Renin

Aldosterone

Epinephrine

Angiotensin II

25.

1 point

Urine is propelled through a ureter by:

smooth muscle

skeletal muscle

ciliated epithelium

Striated muscle

26.

1 point

Normal GFR is about 125 ml/min or 185 L/day whereas normal urine production is about 1ml/min or 1L/day.

True

False

27.

1 point

Normally the kidneys form urine from blood plasma and excrete

Waste products

Glucose

RBC's

Protein

28.

1 point

Which of the following is true about Erythropoietin (EPO)? I. EPO is secreted by the endothelial cells of the peritubular capillaries in the kidney II. hypoxia is the trigger to release EPO III. EPO stimulates the bone marrow to produce red blood cells (erythropoiesis)IV.EPO causes release of Calciferol

I and IV only

I. II and IV

II and IV. only

I II and III.

29.

1 point

Which of the following hormones has an effect on the renal system, helping to maintain fluid balance and blood pressure? I. Antidiuretic hormone II. Atrial natriuretic hormone III. Aldosterone IV. Progesterone

II, III and IV only

I, II, III and IV

I, II and IV only

I, II and III only

30.

1 point

Which of the following reflects the speed of compensation of the renal and respiratory system to correct pH to normal levels?

Neither the renal or respiratory components of acid base balance are able to restore the pH to normal

Both the renal and respiratory components of acid base balance are equal in speed and ability to restore the pH to normal

The respiratory system can adjust the pH in seconds and the renal system is capable of restoring the pH to normal limits.

The renal system can adjust the pH in seconds and the respiratory is able to completely restore the pH to normal