Science: Bones and Muscles Elaine Liu 5 years ago SciLinksBody SystemsWork cellStructuretypesOfTissuesSkindigestiveSysexcretorySysprotectionAgainstDiseasesensesOfNervousSysskeletonmovableJoints1movableJoints2boneStructuremusclePairstypesOfMusclesLeverpullingOutANaillawOfLeverthreeClassesOfLeversleversInBody Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook
