This quiz works best with JavaScript enabled. Home > Science > Biology > Skeletal System – Quiz 470 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Skeletal System Quiz 470 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is an Organ? A) An independent structure that does not have a job. B) A body system of all the muscles of the body that allow movement when they contract, or shorten. C) A body system that is the framework of bones that supports an organism's body, protects its organs, and allows the body to move. D) An independent structure that carries out a specific job for the body. Show Answer Correct Answer: D) An independent structure that carries out a specific job for the body. 2. The vertebrae protects the heart and lungs. A) True. B) False. Show Answer Correct Answer: B) False. 3. This type of joint allows movement in an open and close motion A) Hinge. B) Immoveable. C) Ball and socket. D) Pivot. Show Answer Correct Answer: A) Hinge. 4. Soft, jelly-like center of bones. A) Periosteum. B) Compact bone. C) Cancellous bone. D) Marrow. Show Answer Correct Answer: D) Marrow. 5. How many chest compressions do you give for CPR? A) 10. B) 20. C) 30. D) None of above. Show Answer Correct Answer: C) 30. 6. What type of cell breaks down bone cells? A) Osteocyte. B) Osteoblast. C) Osteoclast. D) None of above. Show Answer Correct Answer: C) Osteoclast. 7. Smallest bone in our body is ..... A) Femur. B) Humerus. C) Stapes. D) Ulna. Show Answer Correct Answer: C) Stapes. 8. Fred was running a race and fell down. He tried to break his fall and put his arms out and broke his arm. What type of fracture is this? A) Open. B) Comminuted. C) Impacted. D) Spiral. Show Answer Correct Answer: C) Impacted. 9. Synarthroses is the medical term for a ..... joint. (page 138) A) Fibrous. B) Synovial. C) Cartilaginous. D) None of above. Show Answer Correct Answer: A) Fibrous. 10. What are smooth muscles? A) Muscles that surround organs, no control of (involuntary). B) Your funny bone. C) Tissue that connects muscles to other muscles. D) None of above. Show Answer Correct Answer: A) Muscles that surround organs, no control of (involuntary). 11. In adults, which of the following is filled with yellow marrow? A) Medullary cavity. B) Spongy bone. C) Periosteum. D) Compact bone. Show Answer Correct Answer: A) Medullary cavity. 12. Which describes a loss in bone density over time? A) Osteoporosis. B) Osteosarcoma. C) Osteocyte. D) Osteomeningitis. Show Answer Correct Answer: A) Osteoporosis. 13. Which exercise best demonstrates the movement of abduction? A) Bending of the elbow joint. B) Twisting the trunk form side to side. C) Performing a lateral leg lift. D) Lifting the toes off the floor. Show Answer Correct Answer: C) Performing a lateral leg lift. 14. Hinge func and movement A) Baby shark doo do. B) 🤷♀️🤡 IM SO FUNNY🙈. C) Allows sliding or twistingmovements.Movements:sliding and twisting. Example:intercarpal and intertarsaljoints. D) Allows for bending andstraightening motionsalong a single plane.Movements:Flexion and extension. Example:elbow and knee joints. Show Answer Correct Answer: D) Allows for bending andstraightening motionsalong a single plane.Movements:Flexion and extension. Example:elbow and knee joints. 15. What is considered the bone breaker A) Osteoclast. B) Osteoblast. C) Calcium. D) Greenstick. Show Answer Correct Answer: A) Osteoclast. 16. Blood cells differentiate from stem cells in the Red Bone Marrow called: A) Hematopoietic Stem Cells. B) Hematotic Stem Cells. C) Hemastatic Stem Cells. D) Hematodynamic Stem Cells. Show Answer Correct Answer: A) Hematopoietic Stem Cells. 17. The portion of the living skin that supports the nail plate as it grows toward the free edge is called the ..... A) Nail bed. B) Cuticle. C) Matrix. D) Ligament. Show Answer Correct Answer: A) Nail bed. 18. What is an incomplete break, does not break in 2 pieces? A) Hairline Fracture. B) Comminuted Fracture. C) Transverse Fracture. D) Osteoporosis. Show Answer Correct Answer: A) Hairline Fracture. 19. A cord of dense tissue that connects a muscle to bone is A) Ligament. B) Tendon. C) Cartilage. D) Fibre. Show Answer Correct Answer: B) Tendon. 20. Your knee is an example of a ..... joint. A) Ball and socket. B) Hinge. C) Pivot. D) Saddle. Show Answer Correct Answer: B) Hinge. ← PreviousNext →Related QuizzesScience QuizzesSkeletal System Quiz 1Skeletal System Quiz 2Skeletal System Quiz 3Skeletal System Quiz 4Skeletal System Quiz 5Skeletal System Quiz 6Skeletal System Quiz 7Skeletal System Quiz 8Skeletal System Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books