1.Organ and Organ System of Human WHERE DO I BELONG? Direction. Classify the organs in the box based on your prior knowledge of the human organ systems. heart lungs blood vessels spleen kidney bones pancreas ovaries skin glands skeletal muscles thymus small intestine HUMAN ORGAN SYSTEM ORGANS LUNGS Example: Respiratory System 1. Nervous System 2. Respiratory system 3. Skeletal System 4. Muscular System 5. Circulatory System 6. Endocrine System 7. Digestive System 8. Excretory System 9. Integumentary System 10. Reproductive System