<Li> male) and digestive systems . </Li> <P> The main systems of the human body are: </P> <Ol> <Li> Cardiovascular system / Circulatory system: <Ol> <Li> Circulates blood around the body via the heart, arteries and veins, delivering oxygen and nutrients to organs and cells and carrying their waste products away . </Li> </Ol> </Li> <Li> Digestive system / Excretory system: <Ol> <Li> Mechanical and chemical processes that provide nutrients via the mouth, esophagus, stomach and intestines . </Li> <Li> Eliminates waste from the body . </Li> </Ol> </Li> <Li> Endocrine system: <Ol> <Li> Provides chemical communications within the body using hormones . </Li> </Ol> </Li> <Li> Integumentary system / Exocrine system: <Ol> <Li> Skin, hair, nails, sweat and other exocrine glands . </Li> </Ol> </Li> <Li> Lymphatic system / Immune system: <Ol> <Li> The system comprising a network of lymphatic vessels that carry a clear fluid called lymph . </Li> <Li> Defends the body against disease - causing agents . </Li> </Ol> </Li> <Li> Muscular system <Ol> <Li> Enables the body to move using muscles . </Li> </Ol> </Li> <Li> Nervous system: <Ol> <Li> Collects and processes information from the senses via nerves and the brain and tells the muscles to contract to cause physical actions . </Li> </Ol> </Li> <Li> Renal system / Urinary system: <Ol> <Li> The system where the kidneys filter blood . </Li> </Ol> </Li> <Li> Reproductive system: <Ol> <Li> The sex organs required for the production of offspring . </Li> </Ol> </Li> <Li> Respiratory system <Ol> <Li> The lungs and the trachea that bring air into the body . </Li> </Ol> </Li> <Li> Skeletal system <Ol> <Li> Bones supporting the body and its organs . </Li> </Ol> </Li> </Ol> <Li> Cardiovascular system / Circulatory system: <Ol> <Li> Circulates blood around the body via the heart, arteries and veins, delivering oxygen and nutrients to organs and cells and carrying their waste products away . </Li> </Ol> </Li>

What are the different organ systems in the body
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