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14 Cards in this Set
- Front
- Back
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Trapezius
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Innervation: Accessory Nerve (Cranial Nerve XI)
Main Actions: Elevates, retracts, and rotates scapula |
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Latissimus dorsi
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Innervation: Thoracodorsal Nerve
Main Actions: Extends, adducts, an medially rotates humerus at shoulder |
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Levator scapulae
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Innervation: Dorsal nerve
Main Actions: Elevates scapula |
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Rhomboid minor and major
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Innervation: Dorsal nerve
Main Actions: Retracts scapula and rotates it to depress glenoid cavity; fixes scapula to thoracic wall |
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Deltoid
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Innervation: Axillary Nerve
Main Action: Abducts arm at shoulder; flexes and medially rotates arm at shoulder; extends and laterally rotates arm at shoulder |
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Supraspinatus
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Innervation: Suprascapular nerve
(Rotator Cuff Muscle) Main Actions: Helps deltoid abduct arm at shoulder and acts with the rotator cuff muscles |
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Infraspinatus
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Innervation: Suprascapular nerve
(Rotator Cuff Muscle) Main Actions: Laterally rotates arm at shoulder |
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Teres minor
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Innervation: Axillary nerve
(Rotator Cuff Muscle) Main Actions: Laterally rotates arm at shoulder |
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Teres major
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Innervation: Lower subscapular nerve
Main Actions: Adducts arm and medially rotates shoulder |
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Subscapularis
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Innervation: Upper and lower subscapular nerve
(Rotator Cuff Muscle) Main Actions: Medially rotates arm at shoulder and adducts it |
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Pectoralis major
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Innervation: Lateral and medial pectoral nerves
Main Actions: Flexes, adducts, and medially rotates arm at shoulder |
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Pectoralis minor
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Innervation: Medial pectoral nerve
Main Actions: Depresses scapula and stabilizes it |
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Serratus anterior
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Innervation: Long thoracic nerve
Main Actions: Rotates scapula upward and pulls it anterior toward thoracic wall |
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Subclavius
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Innervation: Nerve to subclavius
Main Actions: Depresses clavicle |
