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Match the muscles of the rotator cuff group to the action

Match the muscles of the rotator cuff group to the action

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Match the muscles of the rotator cuff group to the action rotates humerus laterally, prevents slippage in abducted arm, stabilizes shoulder D synergist in arm abduction, stabilizes shoulder rotates humerus laterally, stabilizes shoulder rotates humerus medially, stabilizes shoulder 1. Supraspinatus 2. Infraspinatus 3. Subscapularis 4. Teres minor
Transcribed Image Text:Match the muscles of the rotator cuff group to the action rotates humerus laterally, prevents slippage in abducted arm, stabilizes shoulder D synergist in arm abduction, stabilizes shoulder rotates humerus laterally, stabilizes shoulder rotates humerus medially, stabilizes shoulder 1. Supraspinatus 2. Infraspinatus 3. Subscapularis 4. Teres minor
Expert Solution
Step 1: Answer:

Here are the muscles of the rotator cuff group matched with their respective actions:

  1. Supraspinatus - synergist in arm abduction, stabilizes shoulder

  2. Infraspinatus - rotates humerus laterally, stabilizes shoulder

  3. Subscapularis - rotates humerus medially, stabilizes shoulder

  4. Teres minor - rotates humerus laterally, prevents slippage in abducted arm, stabilizes shoulder

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