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Anatomy · Upper limb
Sample itemWhich muscle initiates abduction of the arm?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Supraspinatus
The core Upper limb relationship supports Supraspinatus; it is the response that directly accounts for the structural location or physiological change described.
Option by option
A. Triceps brachii
Triceps brachii does not fulfill the structural or functional role requested.
B. Supraspinatus (correct)
Correct. Supraspinatus is directly supported by the central clue.
C. Pectoralis major
Pectoralis major is not consistent with the key finding in the stem.
D. Biceps brachii
Biceps brachii is associated with a different upper limb relationship.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.