1
ABDOMEN SHORT NOTES
MARS Learning Centre
1
,4 MUSCLES ARE PRESENT IN THE POSTERIOR ABDOMINAL WALL
PSOAS MAJOR
PSOAS MINOR
ILIACUS
QUADRATUS LUMBORUM
2
, PSOAS MAJOR
ORIGIN
Arises from all the lumbar vertebrae
Anterior surface of transverse processes of all the lumbar vertebrae
Anterolateral aspect of bodies and intervertebral discs of lumbar vertebrae
4 tendinous arches
INSERTION
Lesser trochanter of femur along with iliacus
NERVE SUPPLY
Ventral rami of L2 and L3 nerves
ACTION
Chief flexor of hip joint
3
ABDOMEN SHORT NOTES
MARS Learning Centre
1
,4 MUSCLES ARE PRESENT IN THE POSTERIOR ABDOMINAL WALL
PSOAS MAJOR
PSOAS MINOR
ILIACUS
QUADRATUS LUMBORUM
2
, PSOAS MAJOR
ORIGIN
Arises from all the lumbar vertebrae
Anterior surface of transverse processes of all the lumbar vertebrae
Anterolateral aspect of bodies and intervertebral discs of lumbar vertebrae
4 tendinous arches
INSERTION
Lesser trochanter of femur along with iliacus
NERVE SUPPLY
Ventral rami of L2 and L3 nerves
ACTION
Chief flexor of hip joint
3
