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CARE OF YOUR BODYYou must take care of your body. Take regular physical exercise and eat healthy food. Only then all the organ systems will function well.Physical exercise for 20-30 minutes a day keeps your heart, lungs and whole body healthy.Did you know?Let%u2019s Recall%u00be The human body is made up of cells, tissues, organs and organ systems.%u00be There are several organ systems in our body which have different functions.%u00be The heart, the blood and the blood vessels make up your circulatory system. It carries the blood around the body.%u00be Your nose, windpipe and lungs make up your respiratory system. It helps you to breathe air.%u00be The skeletal system gives shape and form to your body and also protects all the organs inside the body.%u00be The digestive system digests the food you eat. It consists of the mouth, the food pipe, the stomach, the intestines and the anus.%u00be The muscular system is made up of muscles. It helps you to move the different parts of your body.%u00be The excretory system consisting of the kidneys, the lungs and the skin removes the wastes from your body.%u00be The nervous system consists of the brain and nerves.cells : the building blocks of our bodytissue : a group of cells which work togetherorgan : a group of tissuesorgan system : a group of organsblood vessels : tubes that carry blood to different parts of the bodyskeleton : the framework of bones in the body muscles : the soft parts attached to the bonesKey Terms258 Arrow-Puffin-3_Semester-1 Science