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