Select the most appropriate word for the given group of words.

A doctor who attends to bone problems

orthopaedist

The most appropriate word for a doctor who attends to bone problems is orthopaedist.

• Orthopaedist is a doctor who specializes in the diagnosis and treatment of musculoskeletal disorders, including bones, joints, muscles, tendons, and ligaments.
• Paediatrician is a doctor who specializes in the care of children from birth to adolescence.
• Cardiologist is a doctor who specializes in the diagnosis and treatment of heart disease.
• Pathologist is a doctor who studies the causes of disease and the changes that occur in tissues and organs during disease.

Orthopaedist is the most appropriate word for this group of words because it specifically refers to a doctor who treats bone problems. The other words do not have the same focus on bones.