Muscle Actions
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| trapezius | superior fibers: elevate and superiorly rotate scapula.
middle fibers: retract scapula.
inferior fibers: depress scapula.
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| levator scapulae | elevates scapulae; inferiorly rotates scapula
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| rhomboids | elevates and retracts scapula; inferiorly rotates scapula
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| pectoralis major | agonist of arm flexion; also adducts and medially rotates arm
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| pectoralis minor | medial rotation of glenohumeral joint/arm
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| serratus anterior | agonist in scapula protaction; superiorly rotates scapula (so glenoid cavity oves superiorly); stabilizes scapula
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| latissimus dorsi | agonist of arm extension; also adducts and medially rotates arm
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| rotator cuff | collectively, these four muscles stabilize the glenohumeral joint
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| subscapularis | medially rotates arm
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| supraspinatus | abducts arm
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| infraspinatus | adducts and laterally rotates arm
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| teres minor | adducts and laterally rotates arm
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
ahasenmu
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