n 16 Jun .. . A scde.coursearc.com + r rd | Dorman High School in Medical Terminology - Summer 20... C MindTap - Cengage Learning x x Unit 3: The Skeletal System: The S... tions Directions: Check your understanding of Structures and Functions of the Skeletal System by completing the questions below. You will only receive credit for terms that are spelled correctly. All answers must begin with lower case letters. The act as the framework for the body, protect the internal organs, and store calcium. The bone marrow (two words) has many functions. Red bone marrow helps form red blood cells and yellow bone marrow stores fat. The word means pertaining to the formation of blood cells. The material that creates a smooth surface for motion within the joints and protects the ends of the bones is called ligaments The work with the muscles to make a variety of motions possible