Question
What is the function of the muscle indicated in the provided image?
| A. |
Retraction of scapula
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| B. |
Protraction of scapula
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| C. |
Abduction of shoulder joint
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| D. |
Adduction of shoulder joint
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Show Answer
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Correct Answer � C
Explanation
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|
The muscle marked in the question is the supraspinatus, which is present above the spine of the scapula and helps abduct the shoulder joint. The muscles involved in abducting the shoulder joint are the deltoid muscle, supraspinatus muscle, and the trapezius muscle
Reasons to rule out other options
Option A – Retraction of scapula: The muscles involved in retracting the scapula are the middle and lower trapezius muscles and the rhomboid major and minor muscles.
Option B – Protraction of scapula: The muscles involved in protracting the scapula are the serratus anterior muscle.
Option D – Adduction of shoulder joint: The muscles involved in adducting the shoulder joint are the latissimus dorsi muscle, pectoralis major muscle, and the teres major muscle.
