er sheet. D. tibia C. humerus 1. Which is NOT the function of the skeletal system? It C. protects the internal organs of the body A. acts as support of the body D. converts energy for the body to move B. serves as framework of the body 2. Which is the longest bone in the body? A. clavicle B. femur 3. What is the function of the axial skeleton? It A, acts as a shock absorber B. aids in the movement of the body C. connects muscles to the skeleton D. protects the delicate organs of the body 4. Why is the bone marrow important to the body? It A. stores much fat B. makes the bones strong D. produces new bone cells 5. Which of these bones aids in movement? A. backbone B. hipbone C. rib cage 6. Which of the following bones protect the lungs and heart? A. backbone B. clavicle D. scapula C. produces red blood cells D. skull C. rib cage C. ligament D. tendons 7. Which of these holds two bones together? A. cartilage B. joint 8. Which bone protects the brain? A. clavicle B. cranium C. pelvic D, ribs 9. Which of these is TRUE about ball-and-socket joint? It allows A. rotation movement C. movement in one direction only B. movement in all directions D. side to side and back and forth movement 10. Which healthful habits should be practiced to keep the skeletal system healthy? A. Do regular exercise. B. Maintain a good posture. C. Eat food rich in calcium and Vitamin D. D. All of the above.