A Glossary of Medical Terms Medical language sometimes seems foreign and obscure. Many words do come from classical Latin or Greek because these 'dead' languages will not change. In ancient Rome the entrance hall of a home was called an atrium .
Doctors now use that word to describe the chambers where blood enters the heart.
The words used by a cardiologist to describe your heart and health are chosen with great care. These terms have very precise meanings. They are very specific so as to be accurate in relaying information. An x-ray picture of the blood vessels of the heart and its blood vessels. The process where dye is injected into the heart or blood vessels so that an x-ray picture can be taken.