Pelvic Neurovasculature

Question 1

The abdominal aorta splits into what two arteries?

Answer 1

Common iliac aa.

Question 2

The common iliac artery splits into what two arteries?

Answer 2

External and internal iliac aa.

Question 3

The external iliac exits the pelvis as what artery?

Answer 3

Femoral aa.

Question 4

The internal iliac artery enters the true pelvis and branches into how many anterior and posterior arteries?

Answer 4

3 posterior and 7 anterior

Question 5

The internal iliac generally supplies what?

Answer 5

Pelvic organs and gluteal region

Question 6

The medial sacral artery comes from what branch of arteries?

Answer 6

Comes from the bifurcation of the aorta into the common iliac aa.

Question 7

Where is the physical location of the iliolumbar artery?

Answer 7

Between iliac crest and L5

Question 8

What does the iliolumbar artery supply?

Answer 8

Medial ilium and L5

Question 9

What foramina do the lateral sacral arteries enter?

Answer 9

Ventral sacral foramina

Question 10

The lateral sacral arteries supply what?

Answer 10

Sacrum and ventral sacral nn.

Question 11

The superior gluteal arteries are located between what vertebral levels?

Answer 11

L5 and S1

Question 12

The superior gluteal m. enters the gluteal region superior to what muscle?

Answer 12

Piriformis m.

Question 13

The superior gluteal artery supplies what?

Answer 13

Gluteal mm. with superior gluteal nn.

Question 14

The superior gluteal artery exits what major foramen?

Answer 14

Greater sciatic

Question 15

What is the first branch of the anterior trunk of the internal iliac artery?

Answer 15

Inferior gluteal artery

Question 16

The inferior gluteal artery is located between what vertebral levels?

Answer 16

S2 and S3

Question 17

Is the inferior gluteal artery located superior or inferior to the primiforis muscle?

Answer 17

Inferior

Question 18

The inferior gluteal artery supplies what?

Answer 18

Gluteal mm. with inferior gluteal nn.

Question 19

The internal pudendal artery exits the pelvis through what foramen?

Answer 19

Greater sciatic foramen

Question 20

In respect to the primiforis muscle how does the internal pudendal artery enters the gluteal region?

Answer 20

Inferiomedial

Question 21

The internal pudendal artery crosses over what major ligament?

Answer 21

Sacrospinous ligament

Question 22

The internal pudendal artery reenters the pelvis via what foramen?

Answer 22

Lesser sciatic

Question 23

The internal pudendal artery supplies what?

Answer 23

Urogenital and anal triangles

Question 24

The pudendal canal contains what?

Answer 24

Internal pudendal artery and pudendal nerve

Question 25

The pudendal canal is formed by what?

Answer 25

Facia of obturator internus m.

Question 26

The obturator artery supplies what?

Answer 26

Medial thigh with obturator n.

Question 27

How many superior vesical arteries are sent to the bladder?

Answer 27

3-4

Question 28

What is the corona mortis?

Answer 28

This is an anastomoses between the obturator and inferior epigastric arteries

Question 29

The uterine artery supplies what?

Answer 29

Uterus, cervix, and superior vaginal canal

Question 30

Where does the ureter run in respect to the uterine artery?

Answer 30

Immediately below

Question 31

The vaginal or inferior vesical arteries supply what?

Answer 31

In females: Inferior vagina, adjacent bladder, and rectum | In males: posterior inferior bladder, ureter, seminal vesicle, and prostate

Question 32

The middle rectal artery supplies what?

Answer 32

Rectum

Question 33

The middle rectal artery anastomoses with what?

Answer 33

Superior rectal from IMA and inferior rectal from internal pudendal

Question 34

What is the veinous drainage of the pelvis?

Answer 34

Internal iliac vv.

Question 35

The sacral plexus is innervated by what somatic nerves?

Answer 35

Sciatic, gluteal, and pudendal nn.

Question 36

The sacral plexus L4 - L5 forms what?

Answer 36

Lumbosacral trunk and crosses over sacral ala

Question 37

The sciatic nerve is formed from what spinal nerves?

Answer 37

L4-S3

Question 38

The pudendal nerve is formed from what spinal nerves?

Answer 38

S2-S4

Question 39

At what vertebral levels are the sympathetic fibers of the pelvis located?

Answer 39

T10-L2(3)

Question 40

The superior hypogastric plexus covers what?

Answer 40

Bifurcation of aorta and upper sacrum

Question 41

The superior hypogastric plexus condenses to form what?

Answer 41

2 hypogastric nn.

Question 42

What serves as the main autonomic plexus of the pelvis?

Answer 42

Inferior hypogastric plexus

Question 43

The right lymphatic duct drains what?

Answer 43

Drains right head and neck, right upper limb, and right upper thorax

Question 44

The thoracic lymphatic duct drains what?

Answer 44

Left head and neck, left upper limb, remainder of thorax, abdomen, pelvis, and lower limbs