As a child, Susan La Flesche had watched a sick Indian woman die because the local white doctor would not give her care. She later credited this tragedy as her inspiration to train as a physician. When Chief Iron Eyes died, he had, according to La Flesche, held at bay “the bane of civilized and uncivilized people,” which was alcohol.
It explains simply <em>what </em>the circulatory system does, and then it tells the reader what Arturo will be discussing <em>about</em> the circulatory system.
