Anterior Muscles Flashcards
1
Q
Rectus abdominis
A
Origin: crest of pubis
Insertion: cartilages of the ribs 5 to 7
Action: spinal flexion, spinal lateral flexion
2
Q
External oblique
A
Origin: lower 8 ribs
Insertion: crest pubis
Action: spinal flexion, lateral flexion, spinal rotation
3
Q
Interior oblique
A
Origin: thoracolumbar Fascia
Insertion: ribs 9 to 12,
Action: spinal flexion, lateral flexion, spinal rotation
4
Q
Transverses Adominus
A
Origin: Thoracolumbar Fascia, ribs 7 to 12
insertion: pubis
action: lengthening & flattening of abdominal wall, spinal stabilization
5
Q
Psoas major
A
Origin: invertebral discs of T12 and L1-5
Insertion: Lessor trochanter of femur
Action: hip flexion, posture maintenance of normal lumbar curve
6
Q
Iliacus
A
Origin: sacrum
Insertion: Lessor trochanter
Action: Hip flexion
