skeletal system. the framework of your body and it is made of 206 living bones (300 in babies)
TRANSCRIPT
Skeletal System
Skeletal System
• The framework of your body and it is made of 206 living bones (300 in babies)
5 Functions of the skeletal system
1. Gives shape and support to your body
2. Protects your internal organs
=
3. Muscles attached to your bones help you move
4. Marrow in the center of bones makes blood cells (2.5 million/second)
5. Bones store calcium and phosphorus for our body
- Ca helps our heart and muscles work- P helps our cells produce and store energy- When stored in our bones, Ca and P help make bones
stronger
Joints
• Any place where 2 or more bones come together.
• Ligaments hold the bones together
5 types of joints
1. Immovable joint (little or no movement)-skull
2. Ball and Socket (circular motion)-hip and shoulder
3. Pivot (twisting motion)-forearm
4. Hinge (one direction)- elbow and knee
5. Gliding (bones slide past each other)- wrist