Vessels, Nerves, Lymphatics

Question 1

the aorta bifurcates into what

Answer 1

the common iliac arteries

Question 2

the common iliac arteries bifurcate into what

Answer 2

the internal and external iliac arteries

Question 3

what pelvic arteries originate form the aorta

Answer 3

• superior rectal off the IMA
• ovarian/testicular
• median sacral

Question 4

where does the median sacral artery run

Answer 4

posteriorly off the aorta and down the midline

Question 5

describe the path of the superior rectal artery

Answer 5

it is the terminal branch of the IMA

Question 6

what arteries typically branch off from the posterior internal iliac artery

Answer 6

• iliolumbar
• lateral sacral
• superior gluteal

Question 7

the iliolumbar artery takes what path

Answer 7

it goes upward to supply the psoas and quadratus

Question 8

the lateral sacral artery takes what path

Answer 8

it lies superior to the pelvic diaphragm

Question 9

the superior gluteal artery takes what path

Answer 9

it exits out the greater sciatic notch superior to the pririformis muscle

Question 10

what arteries typically branch of the anterior internal iliac artery

Answer 10

vaginal
internal pudenal
inferior gluteal
inferior vesicular
middle rectal
obterator
umbilical
uterine
superior vesicular

Question 11

how can the obturator artery be identified

Answer 11

it branches off the anterior internal iliac and leaves via the obturator foramen

Question 12

what is the path of the umbilical artery

Answer 12

it continues as the medial umbilical ligament

Question 13

how can the superior vesicular arteries be identified

Answer 13

they are branches off the umbilical artery

Question 14

arteries supplying the bladder that don’t come off the umbilical artery are known as what

Answer 14

inferior vesicular arteries

Question 15

what branches of the anterior internal iliac artery leave the pelvis via the sciatic foramen

Answer 15

the internal pudendal and the inferior gluteal

Question 16

above the pectinate line, the anal canal drains to what lymph nodes

Answer 16

the internal iliac nodes

Question 17

below the pectinate line, the anal canal drains to what lymph nodes

Answer 17

the superficial inguinal lymph nodes

Question 18

an accessory obturator artery would branch off what

Answer 18

the inferior epigastric branch off the external iliac

Question 19

the lumbosacral trunk comes from what verebral levels

Answer 19

L4 and L5

Question 20

what autonomic nerve plexus sits up over the aorta

Answer 20

the superior hypogastric plexus

Question 21

the pudendal nerve takes what path

Answer 21

S2-S4 out the sciatic notch

Question 22

what nerve plexus overlies the coccyx

Answer 22

the coccygeal plexus

Question 23

where does the sciatic nerve originate

Answer 23

L4-S3

Question 24

where does the superior gluteal artery exit

Answer 24

between the lumbosacral trunk and S1 ventral rami

Question 25

where does the inferior gluteal artery exit

Answer 25

between S2 and S3

Question 26

how can you tell the superior from the inferior gluteal artery

Answer 26

the superior artery exits between the lumbosacral trunk and S1; the inferior artery exits between S2 and S3

Question 27

pelvic v. sacral splanchnic nerves

Answer 27

pelvic splanchnics originate from S2-S4 whereas sacral splanchnics originate from L5-S4

Question 28

which muscles make up the medial pelvic diaphragm

Answer 28

the levator ani and the coccygeus

Question 29

what muscles make up the lateral pelvic diaphram

Answer 29

the obturator internus and the piriformis

Question 30

what is the white tendinous line across the obturator internus muscle

Answer 30

the tendinous arch

Question 31

what are the three levator ani muscles

Answer 31

puborectalis, pubococcygeus, iliococcygeus

Question 32

what are the three primary branches of the pudendal nerve

Answer 32

inferior rectal, perineal, and dorsal nerves