This week was all about heats, however it was shortened for me because I left Thursday for my class trip to France. We started the week off by watching an episode of documentary series called Blood and Guts, on the history of open heart surgery. The show made me realize how recently open heart surgery emerged in history, and that until WWII it had never been accomplished in the field. Even when surgeons felt comfortable that open heart surgery wasn't a taboo crap shoot anymore, doctors still had to be limited to 4 minutes of operation time before the patient died from oxygen deprivation, a side affect of being put under. And only decades ago they realized that they could extend the time by exposing their patients to cold temperatures thereby lowering the rate of oxygen consumption by the brain.
That night we over viewed a short packet detailing the anatomy and functions of the heart in preparation for Tuesday. Mrs. Cole's husband supplied the classroom with enough deer hearts from his hunting excursions that every pair had their own heart. Tuesday was only an exploratory day and no incisions were made. Instead we just got familiar with the external. Wednesday we began actually dissecting the heart and explored the Atriums, Ventricles, Aorta, and Vena Cava. Deer hearts are relatively close in size and structure to human hearts making it a very good experience in understanding the physiology of our own hearts beating in our chests.