Memory Game Skeletal System VocabOnline version Basic vocabulary review for the skeletal system by Elisa A. Attach muscles to bones Soft or spongy, and produces red blood cells. Joint Attach bones to other bones Red Bone Marrow Tendons Connective tissue that acts a a cushion between bones in a joint. Allows for smooth movements. Bone Where two or more bones meet. Allows for movement. Provide support for movement, structure, protection, and mineral storage