>> GOOD MORNING, EVERYBODY. HOW YA DOING? (scattered response) MOST OF YOU ARE MY STUDENTS, SO I'M HAVING A HARD TIME UNDERSTANDING WHY YOU'RE NOT AWAKE AND BRIGHT-EYED...
>> THE NORMAL HEART HAS TWO SIDES, A RIGHT SIDE AND A LEFT SIDE-- AND FOUR CHAMBERS, THE TOP RECEIVING CHAMBERS OR ATRIA, AND THE LOWER CHAMBERS, WHICH ARE THICK-WALLED PUMPING CHAMBERS,...