What describes the prone position?

The prone position is characterized by lying on the abdomen with the face down. This position allows the head to be turned to one side to ensure the airway remains patent and breathing is not compromised. When patients are positioned this way, it can be especially beneficial for various medical procedures and treatments, as well as for respiratory therapy and the assessment of certain conditions.

The other positions differ significantly in orientation and implication. For instance, lying on the back with arms at the sides describes the supine position, which is essentially the opposite of the prone position. The supine position is used commonly for surgeries and examinations that require access to the front of the body. Legs extended while lying on the back does not provide the specific orientation of the body that defines the prone position. Lastly, sitting upright with feet flat describes a completely different posture often used for comfort or during certain examinations, which bears no relation to the prone position.