Anatomy 6 - Lateral Pelvic Wall and Pelvic Mass

Question 1

Where do most of the arteries that supply the pelvis and perineum arise from?

Answer 1

Internal ilac

Question 2

What arteries that supply the pelvis and perineum do not arise from the internal iliac artery?

Answer 2

Gondal artery

Superior rectal artery

Question 3

Where does the gonadal artery arise from?

Answer 3

L2 aorta

Question 4

Where does the superior rectal artery arise from?

Answer 4

Inferior mesenteric

Question 5

At what vertebral level does inferior mesenteric artery arise?

Answer 5

L3

Question 6

At what vertebral level does common iliac artery arise?

Answer 6

L4

Question 7

What does the anterior division of the internal iliac artery supply?

Answer 7

Viscera of pelvis

Question 8

What does the posterior division of the internal iliac artery supply?

Answer 8

Parietum/ walls of pelvis

Question 9

What is a remnant of the umbilical artery?

Answer 9

Median umbilical ligament

Question 10

What structures does the umbilical artery connect in foetus?

Answer 10

Internal iliac to placenta

Question 11

What artery is only present in males?

Answer 11

Inferior vesical artery

Question 12

What is the equivalent of the inferior vesical artery in females?

Answer 12

Vaginal artery

Question 13

What artery and its branches supplies most of the perineum?

Answer 13

Internal pudendal

Question 14

What are the branches of the posterior division of the internal iliac artery?

Answer 14

Posterior:
Iliolumbar
Lateral sacral
Superior gluteal artery

Question 15

At what vertebral level is the terminal branch of the superior gluteal artery?

Answer 15

Anterior rami S1

Question 16

What is the female equivalent of the artery to the vas deferens?

Answer 16

Uterine artery

Question 17

What are the abdominal wall ligaments/ folds?3

Answer 17

Lateral umbilical fold
Medial umbilical fold
Median umbilical fold (urachus)

Question 18

What type of hernia occurs lateral to the umbilical fold? And what type occurs medial?

Answer 18

Lateral - indirect hernia

Medial - direct hernia

Question 19

What forms the abdominal wall ligaments?

Answer 19

Folds of peritoneum

Question 20

What is the female equivalent of the scrotal artery?

Answer 20

Labial artery

Question 21

From which artery do most branches in the perineum originate?

Answer 21

Internal pudendal

Question 22

Where does the anterior scrotal/ anterior labial artery originate?

Answer 22

External iliac

Question 23

Where does the internal pudendal artery arise from?

Answer 23

Anterior division of internal iliac artery

Question 24

What are the terminal branches of the internal pudendal artery?

Answer 24

Dorsal artery of penis/ clitoris

Deep artery of penis/ clitoris

Question 25

What are the 2 branches of ovarian artery?

Answer 25

Ovarian branch

Tubal branch

Question 26

Where are there anastomosis between uterine, vaginal and ovarian arteries?

Answer 26

Uterine and ovarian

Uterine and vaginal

Question 27

What about the structure of the ascending branch uterine arteries allows for it to be stretched and prevents tearing during pregnancy?

Answer 27

Tortuous

Question 28

What does the venous drainage of lateral pelvic wall follow?

Answer 28

Arterial system

Question 29

Where does the majority of blood from the lateral pelvic wall drain to?

Answer 29

Internal iliac vein

Question 30

Apart form the internal iliac vein, where else may blood from the lateral pelvic wall drain to?

Answer 30

Via superior rectal to hepatic portal system

Via lateral sacral veins into internal vertebral venous plexus

Question 31

Why is there a risk of cancer spreading from lateral wall to spine and brain?

Answer 31

Some blood drains to venous plexus

Question 32

Why might a mass compressing in pelvis have symptoms in the leg?

Answer 32

Presence of sciatic nerve

Question 33

Where does lymph from superior pelvic viscera drain?

Answer 33

External iliac nodes to

Common illiac, aortic, thoracic duct then venous system

Question 34

Where does lymph from inferior pelvic viscera drain?

Answer 34

Deep perineum to

Common illiac, aortic, thoracic duct then venous system

Question 35

Where does lymph from superficial perineum drain to?

Answer 35

Superficial inguinal nodes

Question 36

Where does lymph from gonads drain?

Answer 36

Lumbar (caval)/ aortic nodes

Question 37

What is meant by tran-peritoneal spread of cancer?

Answer 37

Through peritoneal layer into peritoneal cavity