1. SKELETAL SYSTEM for dummies
RED= Important
BLACK = Write Down
BLUE = Don’t write down
SKELETAL SYSTEM for dummies pp

2. FUNCTION Bones support muscles and organs
produce red and white blood cells
gives shape and structure to the body
protects internal organs
store minerals

4. SKELETON Axial –the skull, face, vertebral column, and rib cage.
Appendicular –the arms and legs, pelvis, scapula, collar bone, etc
bones and their associated tissues (cartilage and ligaments) make up the skeletal system to support the body

5. BONE STRUCTURE porous and made of proteins and minerals
osteocytes –cells that make bone
bone marrow – soft bone tissue that produces platelets and blood cells

7. BONE DEVELOPMENT
develop from cartilage (tough flexible connective tissue)
ossification: hardening of bone cartilage
elongation at the end of bones

8. JOINTS
place where two bones meet

9. Fixed: no movement between bones (ex. skull).
Semimovable: limited movement (i.e. rib cage and vertebrae)
Movable
1. hinge – knee and knuckle
2. pivot – skull joins the vertebral column
3. ball-and-socket – hip
4. gliding – wrist and ankle (slide over one
another)

10. JOINT STRUCTURE cartilage between joints for cushion
ligaments connect joints (bone to bone)