What is the meaning of the combining form cardi/o?

The combining form "cardi/o" specifically relates to the heart. This form is derived from the Greek word "kardia," which translates to heart. In medical terminology, "cardi/o" is commonly used in various terms associated with the heart, such as cardiology (the study of the heart) and cardiovascular (relating to the heart and blood vessels). Understanding the meanings of medical combining forms, like "cardi/o," is essential for professionals in the medical billing and coding field as it allows them to accurately interpret and document patient diagnoses and treatments that involve the heart. The other options reflect different organs or systems but do not have any relation to the term "cardi/o."