This document describes several healthcare professionals and their roles. It discusses pediatricians who provide medical care and monitor growth for children. Geriatricians assess mental status and health issues for elderly patients. Dentists fix teeth and develop dental treatment plans. Surgeons lead surgical teams and perform operations. Radiologists analyze medical images like x-rays, MRIs, and CT scans to diagnose illnesses. Neurologists diagnose and treat brain and nerve conditions like seizures, encephalitis, meningitis, and Alzheimer's disease. The document provides brief explanations of some medical terms and conditions.