1. 6th Grade Science Levels of Organization

2. I. Levels of Organization A. Cells

3. B. Tissues 1. Groups of cells 2. Types a. Muscle (movement) b. Nervous (control) c. Epithelial (lining surface) d. Connective (rest)

4. C. Organ 1. Groups of Tissues doing a job 2. Examples

5. C. Organ System Groups of Organs doing a job Eleven Systems a. Circulatory b. Digestive c. Endocrine d. Excretory e. Immune f. Integumentary g. Muscular h. Nervous i. Reproductive j. Respiratory k. Skeletal

6. II. Homeostasis Body’s tendency to keep inside balanced Example: Body Temperature Maintaining 1. Sweating 2. Shivering

7. III. Stress Reaction of body to threat Can cause imbalance Body restores when stress removed

8. III. Body Positions Divide four ways 1. Transverse plane (separate top from bottom) i. Superior (Head) ii. Inferior (away from head) 2. Frontal Plane (separate back from front) i. Anterior (belly side) ii. Posterior (spine side)

9. A. Divide four ways 3. Sagittal Plane (Right from Left) 4. Location to core body i. Proximal (toward body) ii. Distal (away from body)

10. IV. Cavities Posterior Brain cavity Spinal cavity Anterior Thoracic Cavity Abdominal Cavity Pelvic Cavity