A prosthesis is a fake body part. When someone loses an arm or a leg, or when a person is born without an arm or leg or some other part of the body, he may be able to get a prosthesis, a man-made part that replaces what's missing. Other kinds of prostheses include artificial heart valves and false teeth.
Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.
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