What is the term for the back-lying position of a patient?

The term for the back-lying position of a patient is "supine position." In this position, the patient lies flat on their back, which is often used in healthcare settings for various assessments and procedures. The supine position can facilitate examination of the anterior surfaces of the body and is commonly used for patients who are resting or undergoing surgery.

Other options describe different positions. The prone position refers to lying face down, the sitting position implies an upright posture, and the lateral position involves lying on one's side. Understanding these terms is crucial for providing proper patient care and ensuring comfort during treatments or examinations.