Term
| Origins and Insertions of the Shoulder Muscles |
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Definition
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Term
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Definition
Origin: Medial half of clavicle, sternum and cartilage of first through sixth ribs.
Insertion: Crest of greater tubercle of humerus. |
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Term
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Definition
Origin: Third, fourth and fifth ribs.
Insertion: Coracoid process of the scapula. |
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Term
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Definition
Origin: Lateral side of the inferior angle and lower half of lateral border of the scapula.
Insertion: Crest of the lesser tubercle of the humerus. |
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Term
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Definition
Origin: Superior half of lateral border of the scapula.
Insertion: Greater tubercle of the humerus. |
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Term
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Definition
Origin: Supraspinous fossa of the scapula.
Insertion: Greater tubercle of the humerus. |
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Term
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Definition
Origin: Infraspinous fossa of the scapula.
Insertion: Greater tubercle of the humerus. |
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Term
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Definition
Origin: Subscapular fossa of the scapula.
Insertion: Lesser tubercle of the humerus. |
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Term
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Definition
Origin:
Short head: Coracoid process of scapula.
Long head: Supraglenoid tubercle of scapula.
Insertion:Tuberosity of the radius and aponeurosis fo the biceps brachii. |
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Term
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Definition
Origin:
Long head: Infraglenoid tubercle of the scapula.
Lateral head: Posterior sruface of proximal half of the humerus.
Medial head: Posterior surface of distal half of the humerus.
Insertion: Olecranon process of the ulna. |
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Term
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Definition
Origin: Coracoid process of the scapula.
Insertion: Medial surface of mid-humeral shaft. |
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Term
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Definition
Origin Spinous processes of last thoracic vertebrae, last three of four ribs, thoracolumbar aponeurosis and poserior iliac crest.
Insertion Crest of the lesser tubercle of the humerus. |
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Term
| Serratus anterior (with origin fixed) |
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Definition
Origin Surfaces of upper eight or nine ribs.
Insertion Anterior surface of medial border of the scapula. |
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Term
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Definition
Origin Spinous processes of T-2 to T-5.
Insertion Spinous processes of C-7 and T-1. |
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Term
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Definition
Origin Spinous processes of T-2 to T-5.
Insertion Spinous processes of C-7 and T-1. |
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Term
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Definition
Origin Spinous processes of C-7 and T-1.
Insertion Upper portion of medial border of the scapula, across from spine of the scapula. |
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Term
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Definition
Origin Transverse processes of first through fourth cervical vertebrae.
Insertion Upper region of medial border and superior angle of the scapula. |
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Term
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Definition
Origin External occipital protuberance, medial portion of superior nuchal line of the occiput, ligamentum nuchae and spinous processes of C-7 through T-12.
Insertion Lateral one-third of clavicle, acromion and spine of the scapula. |
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