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Teacher's Guides: Bones, Muscles, and Joints (Grades 9 to 12) - KidsHealth

1. Bones store calcium and release it into the bloodstream when other parts of the body need it. 2. Ligaments are fibrous strands that connect bones. 3. Name the three types of muscles found in the body, and give a one-sentence description of what they do: Skeletal: These muscles hold bones together, give the body its shape, and help move bones. Smooth: These muscles aid in the digestive ...