BIOL 219 Chapter 44 Study Guide with Questions and Answers

BIOL 219 Chapter 44 Study Guide with Questions and Answers 1. Augustus Waller invented a machine that measures ____. a. blood pressure when the ventricles are contracting b. blood pressure when the ventricles are relaxed c. cardiac output d. electrical activity of the brain e. electrical activity of the heart ANSWER E 2. In Waller's experiment, he placed each of his feet into a pan containing ____. a. carbon dioxide b. iron c. mercury d. pure water e. salt solution ANSWER E 3. The ____ is an accessory system of vessels and organs that helps balance the fluid content of the blood and surrounding tissues. a. circulatory system b. non-circulatory system c. accessory vessel system d. lymphatic system e. heart ANSWER D