ANATOMY- Ureter

Question 1

What are the THREE main parts of the URETER?

Answer 1

1) ABDOMINAL URETER

2) PELVIC URETER

3) INTRAVESICAL URETER

Question 2

At What level does the Abdominal Ureter enter the Pelvis?

Answer 2

• The Abdominal Ureter crosses the Common Iliac artery where it Bifurcates before entering the pelvis infront of the sacroiliac joint

Question 3

At what level does the Common Iliac Artery Bifurcate?

Answer 3

L4

Question 4

Relation of the Abdominal Ureter and Common Iliac Artery

Answer 4

Question 5

Describe the Course of the RIGHT ABDOMINAL URETER

Answer 5

• Passes behind the Second Part of the DUODENUM
  -Crossed by the Right Colic Vessels, Gonadal Vessels and Iliocolic Vessels

Question 6

Describe the Course of the LEFT ABDOMINAL URETER

Answer 6

-Passes behind the mesosigmoid and sigmoid colon
- Crossed by Gonadal vessels, Left Colic Vessels

Question 7

When performing a Hysterectomy what is the significance of “Water under the Bridge”

Answer 7

The Ureter passes under the Uterine Artery

Question 8

How long is the Intravesical part of the Ureter?

Answer 8

2cm

Question 9

What is the Blood Supply of the Ureter?

Answer 9

Abdominal Ureter – renal artery, testicular/ovarian artery, and ureteral branches directly from the abdominal aorta

Pelvic Ureter – superior and inferior vesical arteries.

Question 10

What is the Ureter Made of?

Answer 10

SMOOTH MUSCLE

Question 11

Describe arrangement of smooth muscle in the Ureter

Answer 11

Inner Longitudinal Layer
Outer Circular Layer

Question 12

What is the Epithelium lining the Ureter

Answer 12

Transitional Epithelium (Uroepithelium)

Question 13

Histology of Ureter

Answer 13

Question 14

What are the THREE Narrowest Points of the Ureter and Which is the Most Narrow?

Answer 14

1) Pelviourteric Junction

2) Pelvic Brim

3) Vesicourteric Junction (Narrowest Point)