1. Section 1 How is the Body Organized?

2. Objective  You will know that the human body is composed of subsystems.

3. How is the Body Organized? Prior Knowledge  Callan is the TISSUE  Mikey is the CELL  Clara is the ORGAN SYSTEM  Matthew is the ORGAN  William is the HEART  Put yourselves in order from the simplest to most complex body system

4. How is the Body Organized? Purpose  We are going to read about how body cells work together.  The purpose for reading, is to find out how cells work together to keep the body in balance.

5. How is the Body Organized? Summary  Each cell in the human body is a living unit and part of a larger living unit.  A cell is adapted to perform certain activities.  Each cell in the body depends on and works together with other cells to keep the body in balance.

6. How is the Body Organized? Questions  Why is keeping the body in balance important?  Can you see individual human cells without a microscope? Explain  What might happen if a person’s body temperature falls below the normal range? 

7. How is the Body Organized? Questions  How are body cells alike? How are they different? AlikeDifferent

8. How is the Body Organized? Activity  Use Internet resources to find out three things you can do each day to help your body perform at its best.

9. How is the Body Organized? Objective  You will know that multicellular organisms have a variety of specialized cells, tissues, organs, and organ systems that perform specialized functions.

10. How is the Body Organized? Summary  Cells are organized by the activities they perform.  Similar cells that work together to perform a particular function make up tissues.  Two or more tissues that work together to do a job form an organ.  Each organ is part of an organ system.

11. How is the Body Organized? The human body contains four basic types of tissue: muscle, connective, nerve, and epithelial  Epithelial tissue covers the surface of the body (skin) and the outside and inside of internal organs.  Blood, fat, cartilage, bone, and tendons are examples of connective tissue.  Nerve tissue is found in the brain, spinal cord, and sensory organs.  In addition to making up the heart and skeletal muscles, muscle tissue is found in organs such as the stomach and the eye.

12. How is the Body Organized? Questions  What are some kinds of tissues in your hand?  Describe the heart.  Why is donating blood and organs to other people possible?  What is the basic unit of structure in the human body?

13. How is the Body Organized? Activity  There are four basic types of blood. Usually, only individuals with the same type can exchange blood. Use reference sources to find out the four basic types of blood and which one can be donated to anyone.