Anatomy and Embrology

Question 1

What is the trigone?

Answer 1

Triangular posterior aspect of the base of the bladder

Question 2

What are the ureterovesical valves?

Answer 2

Valves which allow urine to pass downward from the ureters into the urinary bladder but not in opposite direction

Question 3

What are the three divisions of the male urethra?

Answer 3

1. Prostatic
2. Membranous
3. Spongy/Penile

Question 4

WHat are the three epithelial zones of the urothelium?

Answer 4

1. Basal layer
2. Intermediate zone
3. Superficial layer

Question 5

What do the bladder ureter and urethra lack because they are retroperitoneal?

Answer 5

External serosa

Question 6

From what does the lower urinary tract mostly develop from?

Answer 6

The cloaca