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