Front | Back |
Trapezius |
Origin: Base of skull, occipital protuberance; Ligaments of neck; Spines of 7 cervical and upper 3 thoracic vertebrae; Spines of 4-12 thoracic vertebrae.Insertion: Posterior aspect of outer third clavicle; Border of the acromion process; Upper border of the scapular spine; Triangular space at the base of the spine.
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Rhomboid major |
Origin: Spinous process of the 2-5 thoracic vertebrae.Insertion: Medial border of the scapula, below the spine of scapula.
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Rhomboid minor |
Origin: Spinous process 7th cervical and 1st thoracic vertebrae. Insertion: Medial border of the scapula, below the spine of scapula.
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Levator Scapula |
Origin: Transverse process of the upper 4 cervical vertebrae.Insertion: Medial border of the scapula above the spine of the scapular spine.
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Pectoralis Minor |
Origin: Outer surfaces of the 3-5 ribs.Insertion: Coracoid process.
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Serratus anterior |
Origin: Lateral portion of the upper 9 ribsInsertion: Whole medial border of the costal aspect of the scapula.
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Supraspinatus |
Origin: Supraspiantus fossa.Insertion: Top of the greater tubercle of the humerus.
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Infraspinatus |
Origin: Posterior surface of the scapula below the scapular spine.Insertion: Greater tubercle of the humerus on the posterior side.
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Teres minor |
Origin: Posterior, lateral surface of the scapula.Insertion: Greater tubercle of the humerus on the posterior side.
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Subscapularis |
Origin: Entire anterior surface of the scapular fossa.Insertion: Lesser tubercle of the humerus.
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Deltoid |
Origin: Front outer third of clavicle, border of the acromion, and lower edge of the spine of the scapula.
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Teres major |
Origin: Lower third of the lateral border of the scapula.Insertion: Inner lip of the intertubercular groove of the humerus.
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Coracobrachialis |
Origin: coracoid process of the scapula.Insertion: medial, middle of humerus.
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Latissimus dorsi |
Origin: Posterior crest of the ilium, back of the sacrum and spinous process of the lower 3 ribs.Insertion: Medial side of the intertubercular groove of the humerus.
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Pectoralis major |
Origin: Inner half of the anterior surface of the clavicle, anterior surface of the costal cartilages of the first 6 ribs and adjoining.Insertion: Outer lip of the intertubercular groove of the humerus.
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