Stack #61642 Week 3 Word Scramble
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muscle | origin | insertion | action | nerve |
Rhomboids | major: spines of T2-T5 vertebrae; Minor: C7 and T1-T5 | vertebral border of scapula inferior and superior to spine | elevates and adducts scapula, rotates it downward, stabilizes scapula (EARS) | dorsal scapular |
Trapezius | superior nuchal line of occipital bone, ligamentum nuchae, and spines of C7 and T1-T12 | clavicle and acromion and spine of scapula | superior fibers elevate scapula, can help extend head, middle fibers adduct scapula; inferior fibers depress scapula; superior and inferior fibers together rotate scapula UPWARD, stabilizes scapula | Accessory (XI) nerve and cervical spinal nerves C3-C5 |
Quadratus Lumborum | iliac crest and iliolumbar ligament | inferior border of rib 12 and first 4 lumbar vertebrae | acting together, pull twelfth ribs inferiorly during forced exhalation; fix twelfth ribs to prevent their elevation during deep inhalation, and help extend lumbar portion of spine; acting singly, laterally flex spine, expecially lumbar portion | thoracic spinal nerve T12, and lumbar spinal nerves L1-L3 or L4 |
Latissimus Dorsi | spines of inferior 6 thoracic vertebrae, lumbar vertebrae, crests of sacrum and ilium, inferior 4 ribs | intertubercular sulcus of humerus | extends, adducts, and medially rotates arm at shoulder, draws arm inferiorly and posteriorly | thoracodorsal |
Levator scapula | superior 4 or 5 cervical vertebrae (C1-C5) | superior vertebral border of scapula | elevates scapula and rotates it downward | dorsal scapular and cervical spinal nerves C3-C5 |
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sandy
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