1. Human Body Systems Lesson 1 Terms and Definitions

2. Organism Organism - A complete living thing. Example – members of plant and animal kingdoms. Humans, dogs, cats, plants, and more.

3. Body System Body System – is a group of organs that work together to perform a specific function. Example: The organs of the digestive system process food and prepare it for delivery to the body cells.

4. http://www.pediatricfeeding.org/images/gi_anatomy/A_digestive_system.png

5. Organ Organ – is a group of different types of tissues that work together to perform a specific function. Example: Heart, Liver, Brain http://files.turbosquid.com/Preview/Content_2009_07_14__1 2_52_19/HeartExterior01.jpg770a3d1b-3197-45b3-8244- b94112b39522Large.jpg http://educationinjapan.files.wordpress.com/2009/10/labeled_diagram_human_brain.jpg

6. Tissue Tissue – is a group of similar cells that work together to carry out a specific function. Example: muscle tissue facilitates movement http://www.corel.com/img/content/community/tips/px/2007-05a/Arm_4_Finished.jpg

7. Cell Cell – the smallest unit of an organism that can function independently. Example: epidermis skin cells (the outer most layer of skin cells). http://www.scientificamerican.com/media/inline/5F0CD897-E7F2-99DF-3401781447B93D5F_1.jpg