Memory Circulatory Story VocabularyVersión en línea In this game, you will have to match the word to its definition. These word are from the our story, The Circulatory Story. por Whitney Gurrola Related to the circulation of blood. A part of a larger object or system Cell Plasma Hemoglobin Circulatory The smallest, functioning unit of a living organism. Component A protein found in red blood cells that transport, or carries oxygen. The liquid part of blood; 90% of plasma is water. A protective sac that encloses the heart. To carry something one place to another. Pericardium Transport