1. Skeletal System and Muscular System
By Mrs. Carrera

2. Bones in the body… The human body contains 206 bones
Skeletal system provides shape and support, allows movement, protects tissues and organs, stores materials, and produces blood cells

3. Joint
Joints are any place where bones come close together and can allow movement

4. Pivot Joint
A pivot joint is found in the neck and vertebrae

5. Hinge Joint
A hinge joint is found in the elbow, it allows the elbow to move

6. Ball and Socket Joint
Ball and Socket Joints are found in the hip and femur bone

7. Ligaments
Bones are held together with stringy connective tissue called ligaments

8. Tendon
Tendons attach bones to muscle

9. Axial Skeleton
The axial skeleton is made up of the skull, the ribs, the breastbone, and the vertebral column

10. Appendicular Skeleton
The appendicular skeleton is the hands, feet, legs, hips, shoulders. There are 126 bones in the appendicular skeleton

11. Cartilage
Cartilage is a hard jelly like substance that forms your nose and ears

12. Marrow
Marrow is the soft material found in the middle of bones

13. Muscular System
Muscles always work in pairs. In order for skeletal muscles to move, they must contract or shorten.

14. Skeletal Muscle
Skeletal muscle contracts and allows your arms, legs, head and other body parts to move.

15. Smooth Muscle
Smooth muscle is involuntary. That means that smooth muscle can contract without you causing them to. These are found in your large and small intestines.

16. Cardiac Muscle
Cardiac muscle is found only in the heart. It is also an involuntary muscle.