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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
Created by: mary.margaret