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Ch.22 Science
Skeletal System
Skeletal System is made up of | Bone, cartilage, and connective tissue |
Number of baby bones | 300 |
Number of adult bones | 206 |
Fused skeletal at the age of | 25 |
Axial Skeletal | Skull, vertébral column rids, and sternum |
Appendicular Skeletal | Arms legs shoulders, hip bones, wrists, ankles, fingers, toes, etc. |
Help makes blood cells | Morrow |
Compact bone | No visible spaces |
Spongy bone | Many open spaces |
Soft tissue in bone | Morrow |
Red morrow produce what blood cells. | Red and White Blood cells |
Yellow morrow in the central cavity stores... | Fat |
Where two or more bones meet | Joints |
Joints are often held together by | Ligaments |
Thick bands of connective tissue that attach muscles to bone. | Tendons |
Gliding Joints | Bones to glide over one another |
Ball and Socket Joints | Move in all directions |
Hinge Joints | Flex and extend |
Pivot Joints | Turn head |
Immovable Joints | Bones fused together |