| A | B |
|---|
| periosteum | a living bone's surface is covered with a tough, tight fitting membrane |
| compact bone | give bones strength |
| spongy bone | has moany small, open spaces that make bones lightweight |
| marrow | produces red and white blood cells |
| cartilage | thick,smooth,flexible, and slippery layer of tissue |
| joint | any place where two or more bones come together |
| ligament | the bones are held in place at joints by a tough band of tissue |
| tendons | where muscles are attached to |
| skeletal | voluntary move skeleton |
| smooth | involuntary move internal organs |
| cardiac | automatic |
| tonic | some fibers in your muscles are contracting and some are relaxing |
| isotonic | when you push and you move |
| isometric | when you push doesn't move |
