Across
- 3. when stimulated by nerves, able to contract (short and thick)
- 7. Where red blood cells are formed in adults
- 9. sudden, involuntary contractions or spasms in one or more of your muscles
- 12. located on the back, of the human, usually referred to as a shoulderblade
- 14. the largest bone in the upper arm
- 16. shoulder, abducts arm
- 21. upper chest adducts and flexes arm
- 22. dense bone made of osteons that house osteocytes in a lacuna. Found along the diaphysis of long bone
- 23. spine around to chest, extends and adducts upper arm
- 24. To break a bone
- 26. a bone located on the inside of the shoulder, usually called a collarbone
- 27. connect muscles to bone
- 29. ability to be stretched
- 31. back of thigh flexes leg
Down
- 1. bone Located inside compact bones at widened ends of long bones, has spaces in matrix so it looks like a sponge, still rigid, adaptation- to make bones lighter in weight
- 2. forms the wall of the heart and contracts to circulate blood, involuntary
- 4. upper arm, flexes lower arm
- 5. front of thigh, extends leg
- 6. upper arm, extends lower arm
- 8. forms the walls of the internal muscles, involuntary
- 10. bone Hard, dense bone tissue
- 11. buttocks, extends and laterally rotates the thigh, assists with abduction
- 13. shrink in size and lose strength
- 15. allows muscles to return to its original shape
- 17. attachments for the body, attach to bones, voluntary
- 18. Formation of bone
- 19. located in the middle chest area protect your internal organs
- 20. muscles you contract when you want to move
- 25. located on the back and supports the body, usually called the spine
- 28. the largest bone in the upper leg
- 30. contract automatically (stomach, heart, etc.)