Posterior Abdominal Wall, Lumbosacral Plexus And Plevis

Question 1

What organs are in the posterior abdominal wall?

Answer 1

-pancreas
- right/left kidney
-right/left suprarenal gland

Question 2

The superior suprarenal arteries branches from what artery?

Answer 2

Inferior phrenic artery

Question 3

The middle suprarenal artery branches from what artery?

Answer 3

Abdominal aorta

Question 4

The inferior suprarenal artery branches from what artery?

Answer 4

The renal artery

Question 5

Which renal vein is longer?

Answer 5

The left renal vein in longer than the right

Question 6

The left gonadal vein branches from what main vein?

Answer 6

Left renal vein

Question 7

The right gonadal vein branches from what main vein?

Answer 7

The inferior vena cava

Question 8

What are the posterior abdominal wall nerves?

Answer 8

1. Subcostal N (T12)
2. Iliohypogastric nerve (T12, L1)
3. Ilioinguinal nerve (L1)
4. Genitofemoral nerve (L1-2)
5. Lateral cutaneous nerve (L2-3)
6. Femoral nerve (L2-4)
7. Obturator nerve (L2-4)

Question 9

What are the posterior abdominal wall nerves are in the dorsal division?

Answer 9

1. Lateral cutaneous nerve (L2-3)
2. Femoral Nerve (L2-4)

Question 10

What is the difference between the brachial plexus and lumbosacral plexus?

Answer 10

The lumbosacral plexus has no trunk or cords
Ventral Ramus of spinal nerves of L2-S3

Question 11

Review:
List the order in the brachial plexus.

Answer 11

Roots —>Trunk —>Divisions —>Cords —>Terminal branches

Question 12

What nerve is the medial compartment of the anterior division?

Answer 12

Obturator Nerve (L2-4)

Question 13

What nerve is in the posterior division in the anterior compartment?

Answer 13

The femoral nerve (L2-4)

Question 14

What are the structures responsible for the blood supply of the pelvis?

Answer 14

Abdominal aorta—>
-right common iliac artery

 *right internal iliac artery
 *right external iliac artery 

-left common iliac artery

Question 15

The right internal iliac artery branches into how many divisions?

Answer 15

Posterior and anterior divisions

Question 16

The internal iliac artery
- posterior divisions include what arteries?

Answer 16

1. Iliolumbar A.
2. Superior gluteal A.
3. Lateral sacral A.

Question 17

Internal iliac Artery:
What are the arteries in the anterior division, plus female and male.

Answer 17

• umbilical (sup. Vesical)
  -Obturator
  -Middle rectal
  -inferior gluteal
  -internal pudendal

Female:
-vaginal
-uterine

Male:
-inferior vesical

Question 18

The umbilical artery turns into what structure?

Answer 18

Lateral umbilical ligament

Question 19

What nerve is over the psoas major mm?

Answer 19

Genitofemoral Nerve

Question 20

What nerve run underneath the psoas major mm?

Answer 20

Femoral nerve

Question 21

Between the inferior gluteal nerve and internal pudendal artery, what structure is bigger?

Answer 21

Inferior gluteal artery

Question 22

The inferior rectal artery branches from what artery?

Answer 22

Internal pudendal artery

Question 23

What structures are next to the piriformis?

Answer 23

S1 and S2

Question 24

What artery is above the piriformis?

Answer 24

Superior gluteal artery

Question 25

What artery is below the piriformis?

Answer 25

Inferior gluteal artery

Question 26

What structure is important for support of the sacral/spine?

Answer 26

Sacrospinous ligament

Question 27

What muscle has a close relationship and underneath the sacrospinous ligament?

Answer 27

Coccygenus muscle

Question 28

What structures make up the levator ani?

Answer 28

• puborectalis
  -pubococcygenus
  -iliococcygenus

Question 29

What is the PR, PC, IC (levator ani)

Answer 29

PR - puborectalis
PC- pubococcygenus
IC - iliococcygenus

Question 30

What are the muscles of the pelvis floor?

Answer 30

-Levator ani
-Obturator internus
-coccygenus
-piriformis