Lab 3 part 1
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the only place that the bones of the arm join the bones of the rest of the body is _______.
the most important stabilizer of the shoulder girdle is __________.
list the four muscles of the rotator cuff and their actions.
- infraspinatus- lateral rotation
- teres minor- lateral rotation
- subscapularis- medial rotation
abduction of the arm requires what two muscles?
what are the two extensors of the shoulder?
- teres major
- latissimus dorsi
the glenoid process is a very shallow cup for the head of the humerus. what is the advantage of this?
increased range of motion
what is the disadvantage?
easy to dislocate
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