What position is described as lying flat on the back?

The supine position is defined as lying flat on the back with the face and torso facing upward. This position is commonly used in various healthcare settings for patient assessments, treatments, and procedures. It allows for easy access to the patient's torso, making it beneficial for examinations and surgeries. It also supports optimal positioning for certain diagnostic tests.

In contrast, the lateral position involves lying on one side, which can be used to relieve pressure on certain areas of the body. The prone position consists of lying flat on the stomach, which is employed in specific cases such as respiratory therapy or certain surgical procedures. Fowler's position involves sitting up at an angle, often used to assist patients with breathing difficulties or for comfort. Each of these positions has its unique applications, but the supine position specifically refers to the flat-on-the-back posture.