Finally, on this Friday afternoon, before I leave for an appointment at the dentist, here is a worksheet on the on the Greek word root cardi/o. It means heart, which you probably already knew, but also, apparently, orifice.
If you find typos in this document, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review.