Question 18 • 2026-2027 EDGE Human Anatomy and Physiology A
The trunk can be divided by direction into anterior (front) and posterior (back) regions, and each can be divided into superior (upper) and inferior (lower) parts. Thus, the applicable subregions are the superior and inferior anterior trunk regions and the superior and inferior posterior trunk regions. Choices B and D combine terms that do not describe separate trunk subregions.
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