The Amazing Human Body Body Systems The systems of the body work together to keep us active and healthy. Bones and Skeletal System The Skeletal System gives the body structure and shape, protects internal organs and makes blood cells. 'Sing-Along Kids: Dry Bones (Dem Bones) w. Lyrics' on ViewPure Children\'s version, connecting bones from toe to head & from finger to head. Can be used to teach children about skeleton structure. Muscular System The Muscular System moves our body by pulling on the bones. 'Muscles of Arm' on ViewPure Looped clip of muscular action. Contraction and relaxation of bicep and tricep, an antagonistic pair of muscles, of the arm. Respiratory System The Circulatory System brings oxygen into the body. 'Breathing Movements' on ViewPure Check us out at http://www.tutorvista.com/content/biology/biology-ii/respiration/breathing-mechanism.phpnnBreathing MechanismnnBreathing consists of two phases, inspiration and expiration. During inspiration, the diaphragm and the intercostal muscles contract. The diaphragm moves downwards increasing the volume of the thoracic (chest) cavity, and the intercostal muscles pull the ribs up expanding the rib cage and further increasing this volume. Circulatory System The circulatory System brings oxygen to all parts of the body. 'CIRCULATION' on ViewPure The circulatory system consisting of the heart, arteries, capillaries, and veins, is the pumping mechanism that transports blood throughout the body.rnrnIn the heart, the left ventricle contracts, pushing red blood cells into the aorta, the body\'s largest artery. Digestive System The Digestive System breaks done food so that the body can use it for energy. 'Sid the Science Kid-Break It Down' on ViewPure IMPORTANT! PLEASE READ BEFORE WATCHINGrnThis is my 6th Sid the Science Kid video (and also my 6th video). It\'s the video of a song that Teacher Susie sings to Sid and his classmates that talk about how the digestion happens.rnrnNOTE: I DO NOT OWN SID THE SCIENCE KID. Be a Fit Kid A lot of people talk about fit kids, but how do you become one? Here are five rules to live by, if you want to eat right, be active, and maintain a healthy weight.