Bladder

Question 1

What is the minimum amount of urine in the bladder at all times?

Answer 1

50ml

Question 2

How many layers of smooth muscle does the bladder have?

Answer 2

3

Question 3

What are the three layers called?

Answer 3

Internal, middle and external

Question 4

What name is given to the muscle of the bladder?

Answer 4

Detrusor muscle

Question 5

Which layers of muscle have similar longitudinal alignment?

Answer 5

Internal and external

Question 6

Which layer is roughly circular?

Answer 6

The middle layer

Question 7

What cells line the bladder?

Answer 7

epithelium, transitional epithelium or urothelium (all correct)

Question 8

What properties do the urothelium cells have?

Answer 8

Stretchy, flatten and stretch over one another

Question 9

How many cells thick is an empty bladder?

Answer 9

5-6

Question 10

How many cells thick is a distended bladder?

Answer 10

2-3

Question 11

What type of cells is the basal layer of urothelium?

Answer 11

Cuboidal

Question 12

What type of cells is the middle layer of urothelium?

Answer 12

Polygonal

Question 13

What type of cells are the surface layer of the urothelium?

Answer 13

Tall columnar

Question 14

Describe the adult empty bladder anatomy?

Answer 14

Anterior in the lesser pelvis, inferior to the peritoneum.

Question 15

How does the location of the bladder change when it is full?

Answer 15

It extends superiorly into the extraperitoneal fat of the anterior body wall

Question 16

Where is the bladder in children?

Answer 16

In the abdomen

Question 17

What is the name of the smooth triangle that sits between the two ureteric orifices called?

Answer 17

Trigone

Question 18

Where is the trigone located?

Answer 18

Inside the bladder on the posterior wall between the ureteric orifices.

Question 19

What is the region of the trigone called when the bladder is empty?

Answer 19

The rugae ridges

Question 20

Which sex has the internal urethral sphincter?

Answer 20

Males- it stops semen coming into the bladder

Question 21

Where is the internal urethral sphincter?

Answer 21

At the junction between the bladder and the urethra

Question 22

What sort of control is the internal urethral sphincter under?

Answer 22

Autonomic control

Question 23

What is the skeletal muscle sphincter called?

Answer 23

External urethral sphincter

Question 24

What sort of control is the external urethral sphincter under?

Answer 24

Voluntary