Relacionar Columnas Tissues, Organs, and Body SystemsVersión en línea Review the tissue, organ, and body systems. por Janelle Ruiz 1 Respiratory System 2 Muscular System 3 Epithelial Tissue 4 Circulatory System 5 Digestive System 6 Connective Tissue 7 Nervous System Responsible for gas exchange (oxygen- carbon dioxide) with the outside environment Supports organs and joins tissue Lines organs and protects inside of body from outside world Heart, veins, capillaries Brain, spinal column, axons