NATS 1675 Chapter Notes - Chapter 5: Intercalated Disc, Pulmonary Artery, Cardiac Muscle
Document Summary
March 24, 2014- chapter 5: the heart is two pumps. One pumps going to the body, one pump going to the lungs. There are about 100, 000 km of vessels: arteries: we often see them as carrying oxygenated blood. Arterials: little arteries, they are connect the arteries to the capillaries: capillaries: thin walled vessels that connect arteries to veins. Where all exchanges only occur, the rest are too thick so not exchange can occur there. There are 4 valves in the heart: the left side of your heart needs to be stronger to pump all around the body therefore it has more muscles. Look at the outer wall to see whether it is the left or the right, the thicker side is the left side. He will most likely put the diagram on the test backwards: as the walls are squeezing down, these valves shut so there are no back flow.
