1. right – pulmonary – to serve the lungs

left – systemic – to serve the rest of the body

2. atria are think, weak, “floppy dog ears” that receive blood; ventricles are thicker and are what pumps the blood out of the heart (left ventricle is thicker than the right because it’s harder to pump blood to the rest of the body than to the lungs)
3. right atrium, right ventricle, pulmonary artery, arterioles, capillaries in the lungs (O2 in, CO2 out), venules, pulmonary vein, left atrium, left ventricle, aorta, arteries, arterioles, capillaries (02 out, CO2 in), venules, veins, vena cava
4. they are striated and involuntary; they are also connected to each other end to end by intercolated disks and by gap junctions (in gap junctions, the cytoplasm is continuous with a number of other cells (see pg 371); cardiac cells are very aerobic and need a lot of O2… there’s lots of mitochondria and lots of hemoglobin
5. Coronary vessels are so named because they look like a “crown;” they surround the heart; blockage of coronary vessels can starve the heart of O2 which can lead to a heart attack (myocardial infarction); angina is the pain caused by reduced blood flow from coronary vessels