Human Body — Skeletal and Muscular System

Grade 8 Science — Human Body — Skeletal and Muscular System: 25 practice questions with instant scoring and explanations.

1. The skeleton in the human body serves to:
2. The total number of bones in an adult human skeleton is approximately:
3. Bones are connected to each other at:
4. A fixed joint is one where:
5. An example of a fixed joint is found in the:
6. A hinge joint allows movement:
7. Examples of hinge joints in the human body are:
8. A ball-and-socket joint allows movement:
9. The shoulder is an example of a:
10. Cartilage is a tissue that:
11. The material found between the bones in a joint is:
12. Muscles attached to bones by:
13. Voluntary muscles are also called:
14. Involuntary muscles are found in:
15. Cardiac muscle is found only in the:
16. Muscles work in pairs because:
17. When a muscle contracts, it:
18. The muscle that raises the forearm by contracting is the:
19. The muscle that lowers the forearm is the:
20. Good posture means:
21. Poor posture can lead to:
22. The largest bone in the human body is the:
23. Bones store important minerals like:
24. Red blood cells are produced in:
25. The vertebral column protects the: