Contents
Anatomy
Position
- Deep
Origin
- Anterolateral part of 1.-9. rib
Insertion
- Anterior part of medial aspect of Scapula
Main function
- Scapula
- Protraction
- Upward rotation
- Lateral rotation of inferior part
Secondary function
- Scapula
- Elevation
- Depression
Nerve innervation
- Segmental
- C5-C7
- Peripheral
- Nervus thoracis longus
Arterial supply
- Dorsal scapular artery
Referred pain pattern
Muscle Type
- Phasic
- Weakens when overactivated
Symptoms
- Shortness of breath, dyspnea
- Winging of Scapula
- Limited expansion of rib cage during inhalation
- Restricted adduction of Scapula
Videos
Short version
Detailed version
Myofascial lines
Spiral line
- Splenius capitis and cervicis
- Rhomboideus major and minor
- Serratus anterior
- External oblique, abdominal aponeurosis, linea alba
- Internal oblique
- Tensor fascia latae
- Iliotibial tract
- Tibialis anterior
- Peroneus longus
- Biceps femoris
- Sacrotuerous ligament
- Sacrolumbar fascia
- Erector spinae