Skeletal System

5. one of the two small bones of the lower arm on the thumb side
7. is also known as the breastbone
8. which is the long bone that makes up the thigh
12. are soft spots that allow for the enlargement of the skull as the brain grows
15. also known as the collarbones
16. one of the two small bones of the lower arm on the pinky side
17. make up the structure of the ankle (there are 7)
20. is the section of the Skeletal system that forms the main trunk of the body and is composed of the skull, spinal column, ribs, and breastbone.
24. commonly known as the kneecap
26. twisting action tears the ligaments at the joint
27. the larger weight- bearing bone of the lower leg

1. are areas where the cranial bones have joined together
2. the large bone of the upper arm
3. two on the great toe and three on each of the other four toes (there are 14)
4. are air spaces in the bones of the skull, and are lined with mucous membranes, which act as resonating chambers for the voice
6. are openings in bones that allow nerves and blood vessels to enter or leave the voice
7. provide attachment of the upper arm bones
9. is a spherical structure that surrounds and protects the brain
10. are areas where two or more bones join
11. are bones attached to the thoracic vertebrae on the dorsal surface of the body (there are 12 total pairs)
13. when a bone is forcibly displaced from a joint
14. bones from the wrist
18. a crack or a break in bone
19. is the slender, smaller lower leg bone that attaches to the proximal end of the tibia
21. group of diseases involving inflammation of the joints
22. is the section of the Skeletal system that forms the extremities and is composed of the shoulder girdle and leg bones
23. also known as the heel, is formed by the large tarsal bone.
25. are connective tissue bands that help hold long bones together at joints