Pelvic Neurovasculature

Question 1

Abdominal aorta splits to…

Answer 1

common iliac aa

Question 2

Common iliac aa splits to ____ and _____ _____

Answer 2

external and internal iliac aa

Question 3

External iliac aa exits pelvis as _____ aa

Answer 3

femoral

Question 4

Internal iliac aa enters true pelvic and branch

• ___ posterior
• __-__ anterior

–supplies pelvic organs and gluteal region

Answer 4

5 posterior

3-4 anterior

Question 5

________ a:

• btw iliac crest and L5
• supplies medial ilium and L5

–posterior branch of _______

Answer 5

iliolumbar a

internal iliac

Question 6

___ ____a:

• enters ventral sacral foramina
• supplies sacrum and ventral sacral nn

–posterior branch of _______

Answer 6

lateral sacral a

internal iliac

Question 7

_____ _____a:

• btw L5 and S1
• enters gluteal region superior to piriformis m
• supplies gluteal mm w/ superior gluteal

–exit pelvis via greater sciatic foramen

–posterior branch of _______

Answer 7

superior gluteal a

internal iliac

Question 8

_____ ____a:

• btw S1 and S2/S2 and S3
• enters gluteal region inferior to piriformis m
• supplies gluteal mm w/ inferior gluteal nn

–exit pelvis via greater sciatic foramen

–posterior branch of _______

Answer 8

inferior gluteal a

internal iliac

Question 9

_____ _____a:

• runs w/ _____ n
• exits pelvic thru greater sciatic foramen
• enters gluteal region inferomedial to piriformis
• crosses over sacrospinous ligaments
• reenters pelvis thru lesser sciatic foramen
• supplies UG and anal triangle

Answer 9

internal pudendal a

pudendal

Question 10

_____ _____:

• contains internal pudendal a and pudendal n back in pelvic
• formed by fascia of obturator internus m
• runs anteriorly along ischiopubic ramus (toward UG triangle)
• supplies UG and anal triangle

Answer 10

pudendal canal

Question 11

_____ a:

• runs toward anterior abdominal wall
• sends off 3-4 superior vesical aa to bladder
• terminates as medial umbilical lig

–anterior branch of ______

Answer 11

umbilical a

internal iliac

Question 12

______ a:

• runs thru obturator canal
• supplies medial thigh w/ obturator n

–anterior branch of ______

Answer 12

obturator a

internal iliac

Question 13

Corona Mortis “crown of death” refers to what a?

Answer 13

obturator a

Question 14

Obturator Anastomoses:

• obturator a anastomoses w/ ____ ____ vvs
• variable and may be a, v, or both
• damage opens to ____ and _____ ___ systems
• can cause death in minutes

Answer 14

inferior epigastric vvs

internal and external iliac systems

Question 15

______ a:

• 3rd branch in females
• anastomoses w/ ______ a from aorta
• supplies uterus, cervix, superior vaginal canal

-ureter runs immediately below this a

Answer 15

uterine a

Question 16

3rd branches of the Internal Iliac A in Males:

Answer 16

• inferior vesical

- a of ductus deferns

Question 17

______ a:

• 3rd branch split in females
• supplies inferior vaginal canal; posterior inferior bladder
• -ureter runs above this artery

Answer 17

vaginal a

Question 18

____ ____ a:

• 3rd/4th branch
• supplies rectum

Answer 18

middle rectal a