1. Draw a schematic path of a deoxygenated red blood cell traveling from the inferior vena cava through the heart to the lungs and back to the heart and then to the aorta. Label the veins, valves, and parts of the heart it travels through and note oxygenated color change from blue to red.
2. How do the thicknesses of the atrial and ventricular walls differ? How does wall thickness relate to function?
3. Which abdominal arteries are paired? Which are singular?