What anatomical position describes lying on the stomach?

Lying on the stomach is specifically referred to as the prone position. In this orientation, an individual is face down, with their body resting flat against the surface below. This term is commonly used in various medical, anatomical, and fitness contexts to describe body positioning, particularly when referencing how a patient or athlete is positioned during examinations, treatments, or exercises.

The other choices reflect different body orientations. The supine position, for example, is lying on the back, while sitting involves positioning the body upright. Recumbent can refer to lying back but is less specific and can encompass both the supine and prone orientations. Thus, the terminology surrounding the prone position is crucial for accurately describing body postures in a variety of practical applications.