| For those of us who were born eons ago, it was left auricle and right auricle. When that didn't work, I tried left atrium and right atrium and that did work. The two vena cavae, however, are always referred to as superior and inferior (and not because the upper one is better than the lower one). At least I've never heard of the vena cavae in humans as being anything other than superior and inferior. I missed "papillary muscles" -- I've never heard of those. |