Histology

Question 1

What kind of epithelium lines the thin limb of the loop of henle?

Answer 1

Simple squamous lining

Question 2

What is the epithelial lining in the thick ascending limb?

Answer 2

Simple cuboidal

Question 3

Which one; the proximal or distal convoluted tubule, has a brush border?

Answer 3

Proximal

Question 4

What is the epithelium of the distal convoluted tubule?

Answer 4

Simple cuboidal

Question 5

What is the epithelial lining of the collecting ducts?

Answer 5

Simple columnar

Question 6

What are the three components of the juxtaglomerular apparatus?

Answer 6

Macula densa
Juxtaglomerular cells
Extraglomerular mesangial cells

Question 7

What is the purpose of the macula densa cells?

Answer 7

They sense the ion composition in the distal convoluted tubule

Question 8

What do the juxtaglomerular cells do?

Answer 8

They contain and secrete renin

Question 9

Where are the juxtaglomerular cells?

Answer 9

In the wall of the afferent arteriole

Question 10

What epithelium is most of the urinary tract lined with?

Answer 10

Transitional epithelium

Question 11

What lines the distal end of the urethra in the female ?

Answer 11

Stratified squamous epithelium

Question 12

Describe the epithelium lining the male urethra along the different parts

Answer 12

1. Prostatic urethra (3-4cm goes from bladder through the prostate gland) lined by transitional cell epithelium
2. Membranous urethra ( extends 1cm from prostate to the bulb of the penis) Stratified columnar epithelium
3. Penile urethra (15cm, lined by stratified columnar epithelium which becomes stratified squamous near the tip of the penis)