Read the following statements. In maintaining homeostasis, what is the correct order in which they occur? 1) The liver removes glucose from the blood. 2) As the body uses glucose for energy, the liver releases stored glucose into the blood. 3) The body absorbs food molecules after eating. 4) The levels of glucose in the blood rise. Which structure in the figure below is commonly injured by people inserting cotton swabs or other objects into their ears?