KROK 1 2012 – Question 11 · KROK (Medicine) · Human Anatomy
A boy has fallen down from a tree. Now he finds it difficult to abduct his arm into horizontal position. Which muscle is most likely to be injured?
- A. M.deltoideus
- B. M.supinator
- C. M.coracobrachialis
- D. M.anconeus
- E. M.triceps brachii
Hint
Ask which large shoulder muscle carries the arm sideways to the horizontal level after the first degrees of abduction, and compare that with muscles acting at the elbow or forearm.
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