Posterior Abdominal Wall

Question 1

Posterior abdominal wall - formed by what bones?

Answer 1

Lumbar vertebrae (T12 also)
Sacrum
Wings of ilium
Ribs

Question 2

Posterior abdominal wall - formed by what muscles?

Answer 2

Diaphragm
Iliacus
Psoas Major
Quadratus lumborum

Question 3

Each os coxa articulates with the other at what locations?

Answer 3

Pubic symphysis - Anteriorly
Sacrum - Posteriorly
Femur - Inferiorly

Question 4

Ilium, Pubis, Ischium

Answer 4

3 elements of the os coxae

Question 5

OINA of Psoas Major

Answer 5

O-Transverse processes, bodies, and intervertebral discs of T12-L5
I- Lesser trochanter with iliacus
N- Ventral primary rami of L2-L4
A- Flexion of thigh, lateral flexion of the trunk and flexion of the trunk

Question 6

OINA of Psoas Minor

Answer 6

O- Bodies and vertebrae of T12 and L1 (and the disc in between)
I- Pubic bone
N- Femoral n.
A- Flexion of the thigh

Question 7

OINA of Iliacus

Answer 7

O- Iliac fossa
I- Lesser trochanter with psoas major
N- Femoral n.
A- flexion of the thigh

Question 8

OINA of Quadratus Lumborum

Answer 8

O- Iliac crest, iliolumbar ligament, and transverse process of lower lumbar vertebrae
I- Rib 12, transverse process of upper lumbar vertebrae
N- Subcostal and upper lumbar ventral primary rami
A- Flexion of trunk laterally, extend vertebral column, elevate hip, and stabilize rib 12 against inspiration

Question 9

L1, L2, L3, and part of L4

Answer 9

Lumbar PLexus

Question 10

L4, S1, S2, S3, and S4

Answer 10

Sacral Plexus

Question 11

Iliohypogastric

Answer 11

L1

Question 12

Ilioinguinal

Answer 12

L1

Question 13

Genitofemoral

Answer 13

L1 and L2

Question 14

lateral femoral cutaneous

Answer 14

L2 and L3

Question 15

Femoral

Answer 15

L2, L3, and L4

Question 16

Obtruator

Answer 16

L3, L3, and L4

Question 17

Lumbosacral Trunk

Answer 17

part of L4 and all of L5 -> then joins S1-4 to form sacral plexus

Question 18

Superior Gluteal

Answer 18

L4, L5, S1

Question 19

Inferior GLuteal

Answer 19

L5, S1, S2

Question 20

Sciatic

Answer 20

L4, L5, S1, S2, S3

Question 21

Pudendal

Answer 21

S2, S3, S4

Question 22

Twigs to the piriformis

Answer 22

S1, S2, S3, S4

Question 23

Nerve to obturator internus

Answer 23

L5, S1, S2

Question 24

Nerve to obturator externus

Answer 24

L4, L5, S1

Question 25

Supplies the viscera of the pelvic cavity

Answer 25

Internal iliac artery

Question 26

Passes under the inguinal ligament and enters the anterior compartment of the thigh. Changes name to femoral artery when crossing under inguinal ligament.

Answer 26

External iliac artery

Question 27

4 openings of the diaphragm

Answer 27

Sternocostal hiatus Foramen for the inferior vena cava Esophageal hiatus Aortic hiatus

Question 28

What nerves supply the diaphragm?

Answer 28

Right and left phrenic nerves | Right hemidiaphragm nerve