Written by the Fiveable Content Team • Last updated August 2025
Written by the Fiveable Content Team • Last updated August 2025
Definition
In anatomy and physiology, prone describes a body position where an individual is lying face down. This position contrasts with lying on the back, known as supine.
The standard reference posture for anatomical terminology and descriptions where the body stands erect facing the observer, with arms at the sides and palms forward.