Skeletal System
The skeletal system is made of bones , cartilage and ligaments .
1-Outer membrane 2-Compact bone 3-Spongy bone 4-Bone marrow
Bones are made of salt , tissue and water
The jelly substance called bone marrow produces blood cells
JOBS OF A BONE
Protect organs
Give shape and support to your body
produces blood cells
Gives space for the muscle to attach the bone
Store minerals
Axial: ribs, coccyx and the brain bone
Appendicular skeletal : arms, legs and the butt bone
The spine is the main bone to support your body , between every vertebrae there is a cartilage .
The ribs protect the heart and the lungs
The hand and feet bones are extremely flexible
The ribs and legs are very important because they help us move and walk . The name of the bones that help us walk is fibula, tibia, and femur .The patella (knee)is also very important .
Arms: Very flexible .They are made of the bones called ulna, radius and humeros.
The shoulder is made of the bones called clavicle and scapula
The joints are when the bones get together connected by a ligament .
There are 3 types of joints /immovable joints/Slightly movable joints/Movable joints
Ligaments are a tissues that connect one bone to another