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 Plasma Related to the circulation of blood. Pericardium A part of a larger object or system Circulatory Cell A protein found in red blood cells that transport, or carries oxygen. Hemoglobin Transport A protective sac that encloses the heart. The liquid part of blood; 90% of plasma is water. To carry something one place to another. Component The smallest, functioning unit of a living organism.