Urinary Bladder

Question 1

The layers are

Answer 1

Mucosa
Submucosa
Muscular layer
serosa

Question 2

Mucous membrane is lined by

Answer 2

Transitional epithelium / urothelium

Question 3

It’s devoid of

Answer 3

Muscularis mucosa

Question 4

Surface cells allow distension of bladder hence called

Answer 4

Umbrella cells

Question 5

Umbrella cells surface covered by

Answer 5

Uroplakins
Urothelial plaques
Protects cells from hypertonic cytotoxic effect of urine

Question 6

Submucous layer

Answer 6

Loose areolar tissue except at trigone

Question 7

Muscular coat

Answer 7

Détrusor muscle

Question 8

At internal urethral orifice the circular fibres are thickened to form

Answer 8

Sphincter vesicae or internal sphincter