Pelvic vascular supply

Question 1

What is the main artery that supplies the pelvis?

Answer 1

Internal iliac

Question 2

What are the 8 branches of the internal iliac artery (anterior trunk)?

Answer 2

Obturator
Umbilical
Inferior vesical
Pudendal- perineum
Vaginal- vagina
Uterine- uterus and cervix
Rectal
Inferior gluteal- piriformis

Question 3

What are the 3 branches of the internal iliac (posterior trunk)?

Answer 3

ilio-lumbar
sacral
superior gluteal- piriformis

Question 4

Where does the ovarian artery branch from and what does it supply?

Answer 4

Abdominal aorta

Ovaries and fallopian tubes

Question 5

Through which structure does the testicular artery run?

Answer 5

Inguinal canal

Question 6

Describe the venous drainage of the ovaries

Answer 6

Left ovarian vein drains into left renal vein

Right ovarian vein drains into inferior vena cava

Question 7

What vein is responsible for the majority of drainage in the pelvis?

Answer 7

Internal iliac vein

Question 8

The main nerve supply to the perineum comes from the…

Answer 8

Pudendal nerve

Question 9

What 3 structures does the pudendal nerve pass through before reaching the perineum?

Answer 9

Leaves through greater sciatic foramen
Enters again through lesser sciatic foramen
Travels through pudendal canal

Question 10

What are the three branches of the pudendal nerve and what do they supply?

Answer 10

Inferior rectal- external anal sphincter/anus
Dorsal- clitoris/penis
Perineal- muscles in urogenital triangle/labia majora