Muscles 5 Abdomen (lab)

Rectus abdominis

O pubis

I Costal cartilage 5-7, xiphoid

A flex/compress abdomen

External Oblique

O ribs 5-12

I linea alba, iliac crest

A rotates trunk, compresses abdomen

Internal oblique

O iliac crest

I ribs 11-12, linea alba

A rotates trunk, compresses abdomen

Transverse abdominis

O iliac crest, costal cartilage 7-12

I xiphoid, linea alba, pubis

A Compress abdomen, flex vertebral column

Iliacus

O Iliac fossa

I lesser trochanter

A flexes hip, medially rotates femur

Psoas Major

O lumbar vertebrae

I lesser trochanter

A flexes hip, medially rotates femur

Gluteus Maximus

O Ilium, sacrum

I gluteal tuberosity

A extends hip and rotates femur laterally

Gluteus Medius

O Lateral surface of ilium

I greater trochanter

A abducts hip, medially rotates femur

Tensor fasciae latae

O Iliac crest

I tibia, by way of iliotibial tract

A Flexes and abducts hip