1. Organs and organ systems

2. Learning goals We are learning to explain the makeup of organs.
We are learning to identify common organ systems of the body.
We are learning the functions of the organ systems of the body.

3. What we know … Different tissues perform unique, individual functions
Like specialized cells, they can only do so much on their own

4. What is an organ?
Different tissues working together to perform a specific task
Organs contain at least two different types of tissues

5. examples Brain – controls all body activities
Heart – pumps blood through the body
Kidneys – produce urine by filtering wastes and excess water from blood
Stomach – churns and digests food

6. Organ systems
A group of organs that interact with each other to perform a common task.

7. Circulatory system
Transports blood, nutrients, gases and wastes

8. Digestive system Takes in food and breaks it down Absorbs nutrients
Removes solid waste from the body

9. Respiratory system
Controls breathing
Exchanges gases in lungs

10. Immune system
Defends the body against infections

11. Muscular system
Works with the bones to move parts of the body

12. Excretory system
Removes liquid wastes from the body

13. Nervous system Detects changes in the environment
Signals these changes to the body
Causes body to respond

14. Reproductive system
Includes reproductive organs for producing offspring

15. Skeletal system
Supports, protects and works with muscles to move parts of the body

16. Learning goals We are learning to explain the makeup of organs.
We are learning to identify common organ systems of the body.
We are learning the functions of the organ systems of the body.

17. Please complete What is an organ?
What function do the circulatory and respiratory systems work together to perform?
Identify three other examples of organ systems working together to perform a certain function. Explain how they do this.
Name 5 important organs (not the brain, heart, kidney, or stomach) in our body. In your own words, describe the function of each.
What system delivers nutrients to the blood?
What system delivers nutrients to the cells of the body?
What system protects the body from foreign invaders?
What system informs you to stop touching a hot pan?
What are the major organs of each of the organs systems discussed in this note?