Across
- 3. Example for fixed joint
- 5. Which system supports body, produces blood cells and stores minerals.
- 6. Example for ball and socket joints
- 7. Humans have 24 of these heart and lung protecting bones.
- 9. lungs have bones. (true/false)
- 13. The disks, or pads, that exist between bones as gliding joints are made of what?
- 14. ___________lengthen when bicep in the arm contracts.
- 15. Which endocrine gland is at work when you are surprised by a friend who jumps out of the bushes to scare you?
- 17. ___________protects the ends of bones and keeps them from rubbing against each other and damaging each other.
- 19. Which bone is the longest in the body?
- 20. What insulates nerve cells, greatly increasing the speed at which impulses travel.
Down
- 1. Which tissues hold bones together at moveable joints?
- 2. the joint that allows movement in all directions.
- 3. We need to ________ the muscles to avoid injuries during exercise.
- 4. What attaches muscles to bones?
- 8. blood cells and platelets are produced in _________.
- 10. Which system has the following functions-delivers nutrients to cells, removes cellular waste, and fights infection ?
- 11. Heart, stomach, intestine contain muscles that are not under the mind’s control.(true or false)
- 12. What is the most abundant mineral in bones?
- 13. Which layer of the bone is hard and rigid, and provides support for the skeletal system.
- 16. Which bone is the smallest in the body?
- 18. 206 bones are present in adult or young humans?