What marks the boundary between the neck and the thorax?
A) suprasternal notch
B) clavicle
C) jugular notch
D) cricoid cartilage
C
Explanation:
A) The suprasternal notch does not mark the boundary between the neck and the thorax.
B) The clavicle does not mark the boundary between the neck and the thorax.
D) The cricoid cartilage does not mark the boundary between the neck and the thorax.
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