Final answer:
Bandages have several therapeutic benefits, including securing dressings, reducing pressure, facilitating mobility of sprained joints, and securing splints. Additionally, they can help prevent edema in the lower legs by improving blood flow.
Step-by-step explanation:
Bandages are commonly used in medical settings to secure dressings, reduce pressure, facilitate mobility of sprained joints, and secure splints. They can also help prevent edema in the lower legs by providing increased pressure to enable blood flow back to the heart. For example, elastic bandages can be wrapped around the calf to prevent blood accumulation and swelling.