LAB Abdominal and Pelvic Muscles

Rectus Abdominis

Origin: Pubic Bone

Insertion: Xiphoid Process

Action: Compresses abdominal viscera

External Oblique

Origin: lower eight ribs

Insertion: Linea Alba

Action: Flexes vertebral column

Internal Oblique

Origin: inguinal ligament

Insertion: linea alba

Action: fleces vertebral column

Transversus Abdominis

Origin: inguinal ligament

Insertion: linea alba

Action: flexes vertebral column

Quadratus Lumborum

Origin: iliac crest

Insertion: last rib

Action: aids in extending back

Psoas Major

Origin: Lumbar Vertebrae

Insertion: lessert trochanter of femur

Action: flexion of femur and vertebral column

Iliacus

Origin: Iliac fossa

Insertion: Lesser Trochanter of Femur

Action: flex femur