Lumbar Spine Muscles

Match Muscle Origin

• Transverse Abdominis

• Lateral sides of ribs 4-12

• Internal Oblique

• Xiphoid process and cartilages of ribs 5-7

• Recus Abdominis

• Iliac Crest, thoracolumbar fascia, cartibales of ribs 6-12, and inguinal ligament

• External Oblique

• Iliac crest, inguinal ligaments, thoracolumbar fascia

Match Muscle Insertion

• External Oblique

• Ribs 9-12 and linea alba

• Transverse Abdominis

• Iliac crest and linea alba

• Internal Oblique

• Linea Alba

• Rectus Abdominis

• Crest of pubis

Match Muscle Origin

• Quadratus Lumborum

• Transverese process T-T12

• Semispinalis

• Transverse process L1-L4 and 12th rib

• Multifundus

• Transverse process C4-T12

• Interspinalis

• All transverse process

• Rotatores & Intertransversarii

• All spinous process

Intertransversarii Insertion

• Multifidus

• SP 2-4 (above origin)

• Semispinalis

• All spinous process (below origin)

• Intertransversarii

• All transverse process (below origin)

• Interspinalis

• SP 6-8 (above origin)

• Rotatores

• SP 1-2 (above origin)

Match

Groups:

(a) Flexion of trunk

,

(b) Posterior pelvic tilt

,

(c) Rotation of trunk

,

(d) Lateral flexion of trunk

• External Oblique (Bi) 2

• Rectus Abdominis

• Quadratus Lumborum (Uni)

• Internal Oblique

• External Oblique (Uni) 2

• External Oblique (Uni)

• Transversospinalis (Uni)

• Rectus Abdominis 2

• Internal Oblique 2

• External Oblique (Bi)

Match

Groups:

(a) Intra-abdominal pressure

,

(b) Extension of lumbar

,

(c) Extension of trunk

,

(d) Stabilization of back

• Quadratus Lumborum (Bi)

• Transverse Abdominis

• Interspinalis

• Intertransversarii

• Transversospinalis (Bi)