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10 Cards in this Set
- Front
- Back
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Trapezius (Upper)
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O: External occipital protuberance, superior nuchal line, ligamentum nuchae.
I: Lateral 1/3 of clavicle A: B- extends head and neck U- lateral flex to same side, rotation opposite, elevates scapula, upward rotates scapula N: CN-XI- spinal accessory (branch from ventral rami C2-C4) Artery: transverse cervical artery |
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Trapezius (middle)
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O: spinous process of lower cervical & upper thoracic vert.
I: acromion process & spine of scapula A: Stablizes scapula, adducts scapula |
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Trapezius (lower)
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O: spinous process of lower thoracic
I: medial end (base) of the spine of scapula A: depresses scapula, upward rotates scapula (upper and lower work together to raise arm above 90degrees rotating the glenoid cavity) |
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Rhomboid Minor and Major
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O: lower ligamentum nuchae & spinous process of C7-T5.
I: medial (vertebral) border of scapula from base of spine to inferior angle. A: adduction (retraction) of scapula, elevates S/T Joint, & downward rotates scapula N: dorsal scapular nerve |
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Levator Scapula
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O: transverse process of cervical vert. C1-C4
I: superior angle of scapula A: B- extension U- lateral flexion, rotation same side, elevates scapula, downward rotates scapula N: dorsal scapular nerve (from C3-C5) |
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Supraspinatus (rotator cuff SITS)
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O: supraspinous fossa
I: superior facet on greater tubercle of humerus A: abducts G/H joint, stabilizes head in glenoid cavity N: suprascapular nerve |
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Infraspinatus (rotator cuff SITS)
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O: infraspinous fossa
I: middle facet on greater tubercle of humerus A: extension & adduction G/H joint, LR of G/H joint, & stabilizes head in glenoid cavity N: suprascapular nerve |
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Teres Minor (SITS)
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O: superior 2/3, lateral border of scapula
I: lowest facet on greater tubercle of humerus A: adduction & extension G/H joint, LR of G/H joint, horizontal abduction & stabilizes head in glenoid cavity N: Axillary nerve |
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Teres Major
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O: lower 1/3 lateral border of dorsal surface & inferior angle of scapula
I: crest of lesser tubercle of humerus A: Extension, adduction, MR of G/H joint & stabilizes head of glenoid cavity during abduction. N: lower subscapular nerve |
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Latissimus Dorsi
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O: -posterior crest of Ilium
-last 3-4 ribs -spinous process of last 6 thoracic vert., all lumbar & sacral spines via thoracolumbar fascia -inferior angle of scapula. I: floor of intertubercular (bicipital) groove of humerus, crest of lesser tubercle. A: extension, adduction, MR of G/H joint. if humerus is fixed, it will elevate the pelvis |
