Neurology is the study of the bodies nervous system. A Neuro logist is a physician that specilizes in treating nervous system disorders. A Neuro surgeon is a physician who specializes in the surgery of the nervous system, such as brain or spinal cord surgery. Gynecology is the study of the female. A Gyneco logist is a physician that specializes in the treatment of female diseases and disorders.
Gerontology is the study of the elderly.
A Ortho ped ist is a physician that treats bone disorders. The old terminology referring to children is no longer valid, but the term continues to be used today. The term has generally been replaced by Family Practitioner. A Oto laryngo logist is a physician that treats the ear, nose, and throat. Ophthalmology is the study of the eye.