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5 Cards in this Set
- Front
- Back
Trapezius
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Function: Head extension, hyperextension, lateral flexion, and rotation. Elevation, depression, outward rotation, and adduction of the scapula
Innervation: Superficial transverse cervical artery Blood Supply: Accessory nerve (originating at C3/C4) Insertion: Superior nuchal line, external occipital protuberance, ligamentum nuchae, spinous process of C7-T12 Origin: 1/3 lateral part of clavicle, acromion, and spine fo the scapula |
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Latissimus Dorsi
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Function: Elevation, depression, and medial rotation of the humerus
Innervation: Thoracordosal nerve (originates C6/C7/C8) Blood Supply: Thoracordosal artery Origin: Spinous process of T7-L5, posterior surface of sacrum, superior surface of iliac crest, lower 3/4 ribs, inferior angle of the scapula Insertion: Intertubercular groove of the medial/anterior humerous |
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Levator Scapulae
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Function: Elevation of the scapula and helps other muscles in moving the lateral side of the scapula inferiorly
Innervation: Dorsal sacral nerve (originates C4/C5) and ARN of C3 Blood Supply: Dorsal sacral artery Origin: Spinous process of C1-C4 Insertion: Superior angle of scapula |
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Rhomboid Minor
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Function: adducts and retracts the scapula
Innervation: Dorsal sacral nerve ARN Blood Supply: Dorsal sacral artery Origin: Spinous process of C7-T1 Insertion: Medial side of scapula from the superior angle to the spine of the scapula |
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Rhomboid Major
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Function: adducts and retracts the scapula
Innervation: Dorsal sacral nerve ARN Blood Supply: Dorsal sacral artery Insertion: Spinous process of T2-T5 Origin: Medial side of scapula from just inferior to the RMinor to the inferior angle |