Posterior abdominal wall (dave's notes)

Question 1

What is the nerve supply of psoas major?

Answer 1

Anterior primary rami of L,2

Question 2

What is found within psoas major?

Answer 2

The lumbar plexus - look up -? femoral nerve??

Question 3

What is the origin of psoas major?

Answer 3

Transverse process of L1-L5, bodies of T12-L5 and intervertebral discs of T12-L4

Question 4

What is the insertion of psoas major?

Answer 4

Middle surface of lesser trochanter of femur

Question 5

What is the action of psoas major?

Answer 5

Flexes hip

Question 6

What is the nerve supply of psoas minor?

Answer 6

Anterior primary rami of L1

Question 7

What is the nerve supply of quadratus lumborum?

Answer 7

Anterior primary rami (T12-L3)

Question 8

What is the nerve supply of iliacus?

Answer 8

Femoral nerve in abdomen (L2,3)

Question 9

What is found within psoas major?

Answer 9

+/- ?????

Question 10

Where is quadratus lumborum found?

Answer 10

Quadratus lumborum is found in the anterior compartment of the lumbar fascia

Question 11

What is the origin of psoas minor?

Answer 11

Bodies of T12-L1 and intervening intervertebral discs

Question 12

What is the origin of quadratus lumborum?

Answer 12

Inferior border of 12th rib

Question 13

What is the origin of iliacus?

Answer 13

Iliac fossa within the abdomen

Question 14

What is the insertion of quadratus lumborum?

Answer 14

Apicis of transverse process of L1-4, iliolumbar ligament and posterior third of the iliac crest

Question 15

What is the insertion of iliacus?

Answer 15

Lowermost surface of lesser trochanter of femur

Question 16

What is the insertion of psoas minor?

Answer 16

Pectineal line of pubis and fascia over iliopsoas

Question 17

What is the action of psoas minor?

Answer 17

Weak flexor of trunk

Question 18

What is the action of quadratus lumborum?

Answer 18

Fixes 12th rib during respiration and laterally flexes trunk

Question 19

What is the action of iliacus?

Answer 19

Flexes hip