The human skeletal system contains around 300 bones at birth and 206 bones in an adult. The main bones include the skull, jawbone, collarbone, shoulder blades, ribs, backbone, hip bones, finger bones, thigh bones, knee caps, leg bones, and foot bones. Bones are made up of compact bone, spongy bone, and cartilage. Calcium and minerals give bones their hardness, with the jawbone being the hardest. Joints are where two or more bones connect, and the main types of joints are ball-and-socket, hinge, pivot, and gliding joints. The spinal column surrounds and protects the spinal cord.

1. SCIENCE 4

2. SKELETAL
SYSTEM

3. E:kim malayaThe Skeleton Dance.mp4

4. 300 bones
baby

5. 206 bones
adult

6. E:kim malayaBones _ The Dr. Binocs Show _ Learn Videos For Kids.mp4
E:kim malayaBiology Video_ Learn about Human Skeleton.mp4

7. Human Skeleton

8. SKULL

9. JAWBONE

10. COLLARBONE

11. SHOULDER BLADE

12. BREAST BONE

13. ARM BONE

14. RIBS

15. BACKBONE

16. BACKBONE

17. HIP BONE

18. FINGER BONES

19. THIGH BONE

20. KNEE CAP

21. LEG BONE

22. FOOT BONES

23. Parts of Bones
Compact
bone
Spongy
bone
Cartilage

24. Calcium and Minerals

25. Hardest bone
Jawbone

26. Cartilage

27. GIRAFFE

28. Neck Bone

29. E:kim malayaThe Skeleton Dance.mp4

30. JOINTS
1. Ball And Socket Joint
2. Hinge Joint
3. Pivot Joint
4. Gliding Joint

31. JOINTS
The places where two
or more bones fit
together.
E:kim malayaKINDS OF JOINTS.mp4

32. Ball-and-socket joint
Shoulder Hips

33. Hinge joint
Elbows Knees
Fingers

34. Pivot joint
Head and Spine

35. Gliding joint
Spine

36. Spinal Column
Spinal cord

37. Coccyx
Spinal cord