Across
- 1. What day do we not have school this week?
- 4. This system defends the body against harmful bacteria, viruses, and other pathogens. It includes white blood cells, lymph nodes, and the spleen.
- 10. This system is also known as the circulatory system, is responsible for pumping blood throughout the body. It includes the heart, blood, and blood vessels.
- 12. This system consists of the skin, hair, and nails. It acts as a barrier to protect the body from the outside world.
Down
- 2. This system breaks down food into nutrients the body can use. It includes the mouth, stomach, intestines, and liver.
- 3. After cells, _________________ is the next smallest unit of function and structure.
- 5. What day did we start the Body System Presentations?
- 6. This system controls the body's responses to internal and external changes. It includes the brain, spinal cord, and nerves.
- 7. This system gives the body structure, supports movement, and protects vital organs. It includes bones, cartilage, and ligaments.
- 8. This system allows us to breathe by taking in oxygen and expelling carbon dioxide. It includes the lungs, trachea, and diaphragm.
- 9. ___________ are made up of cells, tissues, and most are made of smooth muscle.
- 11. The smallest unit of function and structure in all living things are called...
- 13. This system allows the body to move, maintain posture, and produce heat. It includes skeletal muscles, smooth muscles, and cardiac muscle.