Relacionar Columnas Human Body Relative SystemsVersión en línea Body Systems por John Schubert 1 2 3 This system sends hormones and messages from the brain 4 This system sends messages to the brain 5 This body system helps get liquid waste out of the body. 6 7 8 This body system is designed to fight infectious diseases Immune System Picture Urinary System Nervous System Endocrine System Picture Nervous System Picture Urinary System Picture Immune System Endocrine System