ILA: RENAL

Question 1

How many capillary beds does each nephron have?

Answer 1

2

Question 2

What can be defined as the renal corpuscle?

Answer 2

Glomerular tuft and Bowman’s capsule

Question 3

How many layers are there in the filtration barrier?

Answer 3

3 - epithelial podocytes, glomerular basement membrane and endothelium of capillary

Question 4

What is the renal clearance for glucose?

Answer 4

0 ml/min

Question 5

What is the normal glomerular filtration rate?

Answer 5

125 ml/min

Question 6

What molecule is used in the clinical setting to measure GFR?

Answer 6

Creatinine

Question 7

What is the blood flow to the kidneys per minute?

Answer 7

1 L

Question 8

Approximately how many litres of filtrate pass through the renal tubules each day?

Answer 8

180 L

Question 9

What is the purpose of the macula densa cells?

Answer 9

Detect NaCl concentration

Question 10

What is the purpose of ADH/vasopressin?

Answer 10

Increase the amount of aquaporins and therefore water retention.

Question 11

Where can principal cells be found in a nephron?

Answer 11

Collecting duct

Question 12

What is the function of intercalated cells in the collecting duct?

Answer 12

H+ secretion

Question 13

What protein is produced in the nephron?

Answer 13

Tamm Horsfall protein (=uromodulin)

Question 14

In renal blood supply, arcuate arteries flow into:

Answer 14

Interlobular arteries

Question 15

In the adrenal cortex, zona fasciculata produces:

Answer 15

Glucocorticoids

Question 16

What is the innervation of the penis?

Answer 16

S2-S4

Question 17

What is a normal healthy volume of urine production?

Answer 17

1 ml/kg/hr

Question 18

Which renal structure is not found in the renal medulla?

Answer 18

Glomeruli

Question 19

What epithelium lines the inner surface of the renal pelvis?

Answer 19

Urothelium

Question 20

Which of the following structures is the most distal?

• Renal pelvis
• Minor calyces
• Infundibulum
• Vesicourethral junction

Answer 20

Vesicourethral junction