Human Body Systems

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Across
  1. 1. the smallest level of organization
  2. 3. another name for brain cells
  3. 5. this system allows organisms to reproduce
  4. 6. this system is made up of the largest organ of the body: your skin
  5. 7. this system is made up of the brain and spinal cord.
  6. 9. this systems helps you move and is made up of 3 types of muscle: skeletal, smooth, and cardiac.
  7. 10. this system controls lymph nodes and works to protect you from getting sick
Down
  1. 1. this system carries oxygen through the blood and transports nutrients pumped by the heart.
  2. 2. this system controls hormones such as adrenaline.
  3. 4. this system breaks down food and absorbs nutrients.
  4. 5. this system is made up of the lungs that work to take in oxygen and release carbon dioxide
  5. 8. this system provides the body structure and is made up of 206 bones