Sem 2 Final Exam Study Guide #s1-55 Matching (Scantron) Lab Manual: pages 249 (External anterior view of the heart; Frontal section of the heart), 299 (Respiratory System) & 329 (Digestive System) 2 Essay Questions: Use full sentences to complete each question. Write your answers on a piece/s of paper. 56. Explain how the digestive system works with the circulatory, muscular and respiratory systems in performing their specific function/s. Include in your discussion the organs (or types of muscles) in each system involved in the homeostatic relationship among body systems. (20 points) 57. Trace the path of a drop of blood, starting at the right atrium and returning to the right atrium, through the pulmonary and systemic circuits of the cardiovascular system. Identify the chambers, valves, and blood vessels and indicate whether the blood is oxygenated or deoxygenated in each area. (10 points) You are going to complete #56 in class on May 21.