Anatomy of pelvic lateral wall

Question 1

majority of arteries of pelvis and perineum arise from…

Answer 1

Internal Iliac Artery

Question 2

Which arteries don’t arise from the internal iliac artery?

Answer 2

Gonadal artery (L2 abdominal aorta)
Superior Rectal Artery (continuation of inferior mesenteric)

Question 3

What artery supplies most of perineum via it’s branches?

Answer 3

Internal Pudendal Artery

Question 4

What is special about the inferior vesical artery?

Answer 4

It is only present in males, it is replaced in females by the vaginal artery (which gives off branches to inferior bladder)

Question 5

Arteries of male Perineum =

Answer 5

Branches of Internal pudendal artery:
- Perineal artery
- Posterior Scrotal Artery 
- Deep artery of penis
- Dorsal artery of penis
Branch of external iliac:
- anterior scrotal artery

Question 6

Important anastomose in female pelvis …

Answer 6

Ovarian > Uterine artery

Uterine > Vaginal artery

Question 7

Arteries of female perineum =

Answer 7

Internal pudendal artery > Dorsal artery of clitoris + Perineal artery ( > labial arteries)

Question 8

Venous drainage in pelvis mainly goes to the …

Answer 8

internal iliac vein

Question 9

hard to predict spread of cancer in pelvis, why?

Answer 9

Pattern of lymphatics not sufficiently predictable
can spread in any direction
High cross-over