Supine describes which body position?

• A. Sitting upright
• B. Bent at the waist
• C. Lying on the back
• D. Standing erect

Answer: (C)

Supine means lying on the back, face upward. This position provides a flat, stable surface and is commonly used for exams and procedures because it gives access to the chest, abdomen, and limbs from above. The other options describe different postures: sitting upright is a seated position, bent at the waist indicates flexion of the trunk, and standing erect is an upright, weight-bearing position. Lying on the back matches the definition of supine, whereas lying on the stomach would be prone.