Which directional term best describes the position of the subclavian vein relative to the heart?

• A. Superior
• B. Lateral
• C. Medial
• D. Inferior

Answer: (B)

Verified step by step guidance

1. Step 1: Begin by understanding the directional terms used in anatomy. 'Superior' means above, 'Inferior' means below, 'Medial' means closer to the midline of the body, and 'Lateral' means farther away from the midline of the body.
2. Step 2: Identify the anatomical location of the subclavian vein. The subclavian vein is located near the clavicle (collarbone) and runs laterally from the arm toward the heart.
3. Step 3: Compare the position of the subclavian vein relative to the heart. The heart is located closer to the midline of the body, while the subclavian vein is positioned farther away from the midline.
4. Step 4: Apply the definitions of the directional terms. Since the subclavian vein is farther away from the midline compared to the heart, the term 'Lateral' best describes its position relative to the heart.
5. Step 5: Conclude that the correct directional term to describe the position of the subclavian vein relative to the heart is 'Lateral,' based on its anatomical location and the definitions of directional terms.