1. By: Zachery Limer
The Body Systems

2. Skeletal System

3. The Skeletal System?
The skeletal system is our frame work and it protects our organs.
Our skeletal system is made up of bones.
Our bones help us move by working with the muscles in our body.

4. What are Bones?
Bones are hard whitish sticks that make up the human skeleton.
They are made of calcium and connective tissue.

5. How are Bones Connected?
Bones are connected by ligaments.
Ligaments are tough stringy materials that are attached to each bone in order to connect them.

6. Muscular System

7. What is the Muscular System?
The muscular system is the organ system responsible for movement of the body connected to the bones.

8. What are Muscles?
Muscles are bundles of tissue in the human body.

9. How are Muscles Connected to Bones?
Muscles are connected to bones by tendons.
Tendons are flexible strong cords that hold muscle to bone.

10. Digestive System

11. What is the Digestive System?
The digestive system is a group of organs working together to convert food into energy for the entire body to use.

12. The Many Parts of the Digestive System and What they Do
Mouth(breaks food)
Esophagus(transports food to stomach)
Stomach(breaks down food into thick liquid)
Small intestine(absorbs nutrients from food we eat)
Large intestine(converts food into feces)

13. Nervous system

14. What is the Nervous System?
The nervous system is the part of the body that sends messages through out the body.

15. The Parts of the Nervous System and what They Do?
There are two parts of the nervous system:
Central nervous system and peripheral nervous system
Central: brain sends messages through the body using the spinal cord and nerves of the peripheral nervous system.
Peripheral: has nerve fibers that branch out throughout the body and send messages to muscles for them to move.

16. Respiratory System

17. What is the Respiratory System?
The respiratory system is a system that consists of the many organs needed for us the take in oxygen and breathe out carbon dioxide.

18. The Parts of the Respiratory System and What They Do
Mouth and nose (take in the oxygen)
Trachea (filters air we breathe)
Bronchi (carry air into lungs)
Lungs (takes oxygen in and converts to carbon dioxide
Alveoli (air sacs on end of bronchi that turn air into carbon dioxide)

19. Circulatory System

20. What is the Circulatory System?
The circulatory system is a system that circulates or carries blood through the body.

21. The Parts of the Circulatory System and What They Do
Heart (pumps blood through body)
Blood vessels (transports blood through body)
Lymph (fluid that circulates through the lymphatic system)

22. How Do all the Systems Work Together?
They all work together to make a body, fight of diseases and to keep us healthy.
A chart that shows how the body systems work. Body Systems Chart

23. Sources

24. The End