Posterior Abdominal Wall

Question 1

posterior abdominal wall is formed by which bones

Answer 1

Lumbar vertebrae
sacrum
wings of the ileum
ribs

Question 2

posterior abdominal wall is formed by which muscles

Answer 2

Diaphragm
Iliacus
psoas major
Quadratus lumborum

Question 3

Pelvic girdle is made up of what

Answer 3

two os coxae

Question 4

each os coxae articulates with

Answer 4

The other at the pubic synthesis anteriorly,
with the sacrum posteriorly
with the femur inferiorly

Question 5

Psoas major

Answer 5

o- transverse processes bodies intravertebral disc of T12 to L5
i- lesser trochanter with iliacus
n- financial primary rami of L2 to L4
a- flexion of the thigh, lateral flexion and flexion of the trunk

Question 6

psoas minor

Answer 6

o- bodies of vertebra T12 and L2 and the disc in between
i- pubic bone
n- ventral primary ramus L1
a- flexion of the pelvis and vertebral column

Question 7

illiacus

Answer 7

o- iliac fossa
i- lesser trochanter with psoas major
n- femoral nerve
a- flexion of thigh

Question 8

Quadratus lumborum

Answer 8

o- iliac crest iliolumbar ligament, transverse processes 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 latterly, extend vertebral column, elevate hip, stabilize 12th rib against inspiration

Question 9

lumbar plexus

Answer 9

L 1 2 3 and part of L4

Question 10

sacral plexus

Answer 10

L4 to S4

Question 11

Illiohypogastric nerve root

Answer 11

L1

Question 12

Ilioinguinal nerve root

Answer 12

L1

Question 13

Genitofemoral nerve Root

Answer 13

L1, L2

Question 14

lateral femoral, cutaneous nerve root

Answer 14

L2, L3

Question 15

femoral nerve root

Answer 15

L2, L3, L4

Question 16

Obturator nerve root

Answer 16

L2, L3, L4

Question 17

Lumbosacral trunk

Answer 17

Part of the ventral primary ramus of L4 joins ventral primary ramus of L5 to form the lumbosacral trunk,
which joins S1 to 4 to form the sacral plexus

Question 18

superior gluteal nerve roots

Answer 18

L4, L5, S1

Question 19

inferior gluteal nerve root

Answer 19

L5, S1 S2

Question 20

Sciatic nerve root

Answer 20

L4, L5, S1 S2 S3

Question 21

pudendal nerve root

Answer 21

S2 S3 S4

Question 22

twigs to the piriformis Root

Answer 22

S1 S2 S3 S4

Question 23

nerve to obturator internus root

Answer 23

L5, S1 S2

Question 24

nerve to quadratus femoris root

Answer 24

L4 L5 S1

Question 25

Lumbar plexus nerves

Answer 25

Illiohypogastric Ilioinguinal Genitofemoral Lateral femoral cutaneous femoral Obturator

Question 26

sacral plexus nerves

Answer 26

Superior glueteal Inferior gluteal Sciatic Pudendal Twigs to the piriformis Nerve to obturator internus Nerve to quadratus femoris

Question 27

The abdominal aorta divides at

Answer 27

Divides at the level of L4 vertebrae into right, and left common iliac arteries

Question 28

internal iliac supplies

Answer 28

Viscera of the pelvic cavity

Question 29

External iliac passes

Answer 29

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

Question 30

Inferior epigastric artery

Answer 30

Arises from the external iliac artery before it enters the anterior thigh compartment It supplies the inferior aspect of the anterior abdominal wall

Question 31

inferior vena cava

Answer 31

Largest vein in the body Returns blood from both lower extremities anterior abdominal wall and abdominal pelvic viscera

Question 32

The inferior vena cava arises from

Answer 32

about L5 vertebrae from a union of the common iliac veins Ascends through the vena cava foramen in the diaphragm, and continues to the heart

Question 33

Diaphragm

Answer 33

Musculotendinous partition separating the thoracic and abdominal cavities Major muscle of respiration

Question 34

The diagram is composed of

Answer 34

Central tendon- the shape of a boomerang into which the peripheral muscular portion inserts Peripheral muscular portion

Question 35

peripheral muscular portion of diaphragm

Answer 35

Sternal portion Costal portion Lumbar portion

Question 36

Sternal portion of peripheral muscular

Answer 36

Fibers arising from xiphoid and inserting into the Central Tendon

Question 37

Costal portion of peripheral muscular

Answer 37

Arises from the internal surface of the lower six ribs and costal cartilage and lateral and medial arcuate ligaments

Question 38

Lumbar portion of peripheral muscular

Answer 38

arises from the lumbar vertebrae into the form of a right Crus and left Crus right crus arise from LV 1-3 and their intravertebral discs left crus arise from LV 1-2 and their intervertebral discs

Question 39

openings in the diaphragm

Answer 39

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

Question 40

Sternocostal hiatus

Answer 40

passage of the superior Epigastric vessels, and some lymphatics

Question 41

Foramen for the inferior vena cava

Answer 41

Passage for the inferior vena cava, and right phrenic nerve

Question 42

Esophageal hiatus

Answer 42

Passage for the esophagus and vagal trunks

Question 43

Aortic hiatus

Answer 43

Passage for the aorta and thoracic ducts

Question 44

sympathetic trunk passes

Answer 44

Posterior to the medial arcuate ligament