Skeletal System

4. skeleton composed of 80 bones and includes the skull, hyoid bone, vertebral column, and the rib cage
8. finger bones
9. S or C curvature; could be in both the thoracic and lumbar regions of the back
13. skeleton composed of 126 bones; divided into upper and lower extremities
15. lower arm bone; located on the pinky side of the arm
17. lower leg bone
19. shoulder blade
21. shin bone
22. breastbone
23. swayback; an exaggerated forward curve in the lumbar region
24. in the palm of the hand
28. attach muscles to bones
29. thigh bone; longest and heaviest bone in the body
30. a series of small, irregularly shaped bones that form the spine
31. kneecap

1. bones protect internal organs; examples include the cranium, ribs, and sternum
2. hunchback; an exaggerated curve in the thoracic region
3. wrist bones
5. collarbone
6. flexible connective tissue that covers the end of many bones at the joint
7. bones embedded in the tendons and help protect the tendons; example is the patella
10. lower arm bone; located on the thumb side of the arm
11. bones have an irregular shape and help protect internal organs; example is vertebrae
12. toe bones
14. upper arm bone
16. connect bones at a joint
18. encloses and protects the brain
20. bones support weight and help with movement; examples include humerus, radius, femur, and tibia
21. forms the heel and the posterior side of the foot
25. the largest sesamoid bone in the body
26. bones provide stability with their cube shape; examples include carpals and tarsals
27. feet bones