Histology of Bladder and Urethra

Question 1

What are the three layers of the bladder

Answer 1

Mucosa
Musculosa
Adventitia/Serosa

Question 2

Which region of the bladder does not possess many mucosal folds

Answer 2

Trigone region

Question 3

What kind of epithelium is in the bladder

Answer 3

transitional/urothelium

Question 4

What are the two layer of the musculosa in the bladder

Answer 4

an inner longitudinal IL layer and an outer circular OC layer

Question 5

Which part of the bladder has serosal covering

Answer 5

bladder dome

Question 6

The third outer longitudinal layer of the bladder is only found in which region

Answer 6

neck region

Question 7

What is the term used to describe the arrangement of the detrusor muscle bundles

Answer 7

Plexiform arrangement

Question 8

Uroepithelium, permeable or impermeable to salts and water?

Answer 8

Impermiable

Question 9

What are the three cell layers of the uroepithelium

Answer 9

1. superficial layer of large single/binucleated dome-shaped/umbrella cells.
2. The intermediate cell layer
3. basal cell layer

Question 10

Which cell layer of the uroepithelium contains pear-shaped cells and desmosomes

Answer 10

intermediate cell layer

Question 11

Under which condition would the umbrella cells be highly stretched and appear as squamous

Answer 11

When the bladder is filled

Question 12

Which type of cells in the bladder contains plaques in their apical membrane

Answer 12

Umbrella cells

Question 13

Which type of cells in the bladder contains tight junctions and their lateral domains exhibit interdigitations.

Answer 13

Umbrella cells

Question 14

Which type of cells in the bladder contains fusiform vesicles

Answer 14

Umbrella cells

Question 15

Lining epithelium in the prostatic urethra

Answer 15

urothelium

Question 16

Lining epithelium in the membranous urethra

Answer 16

stratified or pseudostratified columnar epithelium

Question 17

Lining epithelium in the penile urethra

Answer 17

pseudostratified columnar epithelium

Question 18

Lining epithelium in the upper half of the female urethra

Answer 18

urothelium

Question 19

Lining epithelium in the lower half of the female urethra

Answer 19

pseudostratified columnar epithelium

Question 20

Lining epithelium just before the termination of the female urethra

Answer 20

stratified squamous epithelium

Question 21

What are the three glands present in the male urethra

Answer 21

• Bulbourethral (Cowper) glands
• Littré glands
• Intraepithelial (juxtaepithelial) glands

Question 22

Which mucous glands are in the bulbous and membranous urethra

Answer 22

Bulbourethral (Cowper) glands

Question 23

Which mucous glands are in the penile urethra

Answer 23

Littré glands

Question 24

What are the two glands present in the female urethra

Answer 24

Periurethral (Skene) glands:

Littré (Minor vestibular) glands

Question 25

The striated muscle of which structure forms the external urethral sphincter

Answer 25

urogenital diaphragm

Question 26

The plaques found on the apical surface of umbrella cells come from which structure within the cell

Answer 26

Fusiform vesicles