This quiz works best with JavaScript enabled. Home > Science > Biology > Skeletal System – Quiz 471 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Skeletal System Quiz 471 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is #21? A) Skull. B) Mandible. Show Answer Correct Answer: B) Mandible. 2. The vertebra is an irregular bone. A) True. B) False. Show Answer Correct Answer: A) True. 3. The skeletal system protects ..... A) Rib. B) Internal Organs. C) Hair. D) Blood. Show Answer Correct Answer: B) Internal Organs. 4. In children, what is found in the medullary cavity? A) Yellow bone marrow. B) Red bone marrow. C) Fat storage. D) Lysosomes. Show Answer Correct Answer: B) Red bone marrow. 5. How many false ribs are there? A) 7. B) 3. C) 12. D) 2. Show Answer Correct Answer: B) 3. 6. Which defect fails to close the spinal canal around the spinal cord? A) Spina bifida. B) Paget's disease. C) Arthritis. D) Spondylolisthesis. Show Answer Correct Answer: A) Spina bifida. 7. Which system Excretes waste A) Skeletal. B) Outgrowths. Show Answer Correct Answer: B) Outgrowths. 8. To bend the arm, ..... A) The biceps contracts and the triceps relaxes. B) The biceps and the triceps relax. C) The biceps and the triceps contract. D) The biceps relaxes and the triceps contracts. Show Answer Correct Answer: A) The biceps contracts and the triceps relaxes. 9. Which of the following are proteins? A) Arugula. B) Strawberries. C) Tortilla. D) Beans, eggs, chicken. Show Answer Correct Answer: D) Beans, eggs, chicken. 10. Part of the pectoral girdle, it's the only long bone that lies horizontally A) Scapula. B) Humerus. C) Clavicle. D) Vertebrae. Show Answer Correct Answer: C) Clavicle. 11. A fused rib cage helps to resist twisting and bending during flight A) True. B) False. Show Answer Correct Answer: A) True. 12. -lysis means A) Loosening, setting free. B) To bind/tie together. C) Crooked, bent. D) Bent backward. Show Answer Correct Answer: A) Loosening, setting free. 13. Both compact and spongy bone contain rings of matrix called ..... A) Osteons. B) Beams. C) Lacunae. D) Lamellae. E) Canals. Show Answer Correct Answer: D) Lamellae. 14. Bone is broken completely in half, but ends do not penetrate the skin A) Simple/closed fx. B) Greenstick fx. C) Compound/open fx. D) Comminuted fx. Show Answer Correct Answer: A) Simple/closed fx. 15. What makes up most of the bone matrix A) Lead. B) Calcium Phosphate. C) Strontium. D) Sodium Chloride. Show Answer Correct Answer: B) Calcium Phosphate. 16. What system is made up of all the bones in the body? A) The lymphatic system. B) The skeletal system. C) The muscular system. D) The cardiovascular system. Show Answer Correct Answer: B) The skeletal system. 17. This is the shaft of the bone A) Diaphysis. B) Medullary Cavity. C) Bone Marrow. D) Epiphysis. Show Answer Correct Answer: A) Diaphysis. 18. Bones in the wrist, ankle, and knee are all examples of A) Long bones. B) Short bones. C) Flat bones. D) Irregular bones. Show Answer Correct Answer: B) Short bones. 19. Type of arthritis that occurs when cartilage at the ends of bones wears down A) Osteoarthritis. B) Osteoporosis. C) Osteopenia. D) Rheumatoid Arthritis. E) Rickets. Show Answer Correct Answer: A) Osteoarthritis. 20. The medullary cavity A) Shaft, hollow tube made of compact bone. B) End of long bones. C) Contains yellow bone marrow. D) Strong membrane covering bone . Show Answer Correct Answer: C) Contains yellow bone marrow. ← 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