pelvis blood supply

Question 1

what vertebral level does the abdominal aorta divide into the common iliac arteries

Answer 1

L4

Question 2

where do the external and internal iliac arteries arise

Answer 2

common iliac divides into the external and internal iliac arteries

Question 3

what muscle do the internal iliac arteries descend on

Answer 3

psoas major
move posteriorly down medial side of muscle
pass posteriorly to greater sciatic foramen

Question 4

what is the anatomical course of the external iliac artery

Answer 4

descends on psoas major but moves anteriorly

exists pelvis deep to inguinal ligament and becomes femoral artery

Question 5

when does the internal iliac artery divide into anterior and posterior trunks

Answer 5

superior boarder of greater sciatic foramen

Question 6

what arteries arise from the anterior division of the internal iliac artery

Answer 6

umbilical 
obturator 
inferior and superior vesical 
middle rectal 
internal pudendal 
inferior gluteal 
uterine

Question 7

what vessel does the umbilical artery give rise to

Answer 7

superior vesicle

Question 8

what vessel does the uterine artery give rise to

Answer 8

vaginal

Question 9

describe the course of the umbilical artery

Answer 9

moves anteriorly and gives off the superior and inferior vesical arteries

Question 10

describe the anatomical route of the superior vesical artery

Answer 10

branch off umbilical artery
travel anteriorly on the surface of obturator internus
supply superior part of bladder

Question 11

describe the anatomical route of the inferior vesical artery

Answer 11

only in males (females have uterine artery instead)
arises from anterior division of internal iliac artery
passes underneath the peritoneum and supplies the lower part of the bladder, seminal gland and prostate

Question 12

describe the anatomical rout of the middle rectal artery

Answer 12

descends in pelvis to rectum

supplies seminal gland, prostate, rectum

Question 13

where does the internal pudendal artery arise from

Answer 13

anterior division of internal iliac artery

Question 14

what is the anatomical course of the pudendal artery

Answer 14

runs with pudendal vein and nerve
exists pelvis through greater sciatic foramen anteriorly to sacral plexus
enters perineum through lesser sciatic foramen

Question 15

what does the internal pudendal artery supply

Answer 15

main artery of perineum 
muscles of perineum 
skin 
urogenital triangles 
erectile tissues

Question 16

where does the inferior gluteal artery arise from

Answer 16

anterior division of internal iliac artery

Question 17

anatomical course of inferior gluteal artery

Answer 17

leaves pelvis by greater sciatic foramen

inferior to piriformis muscle

Question 18

origin of uterine artery

Answer 18

anterior branch

only in females

Question 19

anatomical course of uterine artery

Answer 19

runs medially on levator ani
passes OVER ureter
gives off ascending and descending branch at junction of vagina and cervix

Question 20

where does the ascending branch of the uterine artery go

Answer 20

anastomoses with ovarian artery

Question 21

where does the descending branch of the uterine artery go

Answer 21

becomes vaginal artery and supplies vagina

Question 22

what vessels does the posterior division of the internal iliac artery give rise to

Answer 22

iliolumbar artery
lateral sacral artery
superior gluteal artery

Question 23

describe the anatomical course of the iliolumbar artery

Answer 23

ascends posterior to psoas major

Question 24

describe course of lateral sacral artery

Answer 24

runs superficially to piriformis

gives off branches that pass through sacral foramina

Question 25

anatomical course of superior gluteal artery

Answer 25

travels through greater sciatic foramen above the piriformis muscle to supply gluteal muscles

Question 26

origin of superior rectal artery

Answer 26

abdominal aorta at L3

terminal branch of inferior mesenteric artery

Question 27

anatomical route of superior rectal artery

Answer 27

descends into pelvis
bifurcates at S3
supplies upper rectum

Question 28

origin of testicular arteries/ovarian arteries

Answer 28

arise from aorta at L3 superior to superior rectal artery

Question 29

anatomical course of ovarian arteries

Answer 29

descends retroperitoneally

crosses brim of pelvis and is transmitted to ovaries by the suspensory ligament

Question 30

anatomical course of testicular arteries

Answer 30

descend retroperitoneally

travel through inguinal canal and are transmitted by spermatic cord

Question 31

anatomical course of obturator artery

Answer 31

arises from anterior branch
travels antero-inferiorly on pelvic wall
supplies pelvic muscles and head of femur

Question 32

describe venous drainage of pelvis

Answer 32

veins are paired with arteries

Question 33

describe the drainage of testicular/ovarian veins

Answer 33

left testicular/ovarian vein drains into left renal vein

right veins drain directly to IVC

Question 34

where does the superior rectal vein drain to

Answer 34

portal venous system