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Muscles-Trunk

Muscles of the Trunk

MusclesAction, Insertion, Origin
Pectoralis Major Action: Abducts arm| Insertion: Humerous| Origin: Clavicle, Sternum, Ribs
Deltoid Action: Shoulder abduction, flexion, and extension| Insertion: Humerous| Origin: Clavicle, Scapula
Serratus Anterior Action: Abducts and stabilizes Scapula| Insertion: Scapula| Origin: Ribs
External Oblique Action: Flexes and rotates vertebral column| Insertion: Pubic crest| Origin: Ribs
Rectus Abdominis Action: Depresses ribs| Insertion: Ribs and Sternum| Origin: Pubis
Pectoralis Minor Action: Stabilizes scapula| Insertion: Scapula
External Intercostals Action: Inhalation/Elevates ribs| Insertion: Superior border of ribs
Internal Intercostals Action: Stabilizes ribs| Insertion: Inferior border of ribs
Internal Oblique Action: Compresses abdomen and rotates vertebra| Insertion: Pubic crest
Transverse Abdominis Action: Compresses Abdomen| Insertion: Pubis
Trapezius Action: Retracts shoulder| Insertion: Spine and Scapula| Origin: Thoracic and Cervical Spine
Latissimus Dorsi Action: Abducts, extends, and rotates arm| Insertion: Humerous| Origin: Thoracic and Lumbar spine
Infraspinatus Action: Rotates and Abducts arm| Insertion: Humerous| Origin: Scapula
Teres Major Action: Internal rotation of Humerous| Insertion: Humerous| Origin: Scapula
Rhomboid Major Action: Retracts Scapula| Insertion: Scapula| Origin: Thoracic vertebra
Rhomboid Minor Action: Retracts Scapula| Insertion: Scapula| Origin: Cervical and Thoracic spine
Levator Scapulae Action: Elevates Scapula| Insertion: Humerous| Origin: Scapula
Supraspinatus Action: Abduction of arm and stabilizes Humerous| Insertion: Humerous| Origin: Scapula
Teres Minor Action: Rotates and abducts arm| Insertion: Humerous| Origin: Scapula
Created by: cut.piece
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