U3 - How does our body work?

2. A large organ that helps digest food and remove toxins from the blood.
3. The feeling of wanting to eat food.
5. To throw up food or liquid from the stomach.
8. A special part of a hospital where people go for urgent medical care.
11. Quick, involuntary movements of the diaphragm that make a sound when breathing in.
12. When blood comes out of the nose, often caused by dryness or injury.
14. A reaction of the body to something that usually does not cause problems, like certain foods or pollen.
18. When someone is not awake and cannot respond to others.
19. Two organs that filter waste from the blood and help produce urine.
20. When a part of the body becomes larger than normal, often due to injury or inflammation.
21. Chemicals made by the body that send messages to control how we grow and feel.
22. A safe way to lay someone down on their side if they are unconscious but breathing.

1. When blood comes out of a wound or injury.
4. When a part of the body cannot move because of injury or illness.
6. The important parts inside the body, like the heart and lungs, that help us function.
7. Supportive devices used under the arms to help someone walk when they can't use their legs.
9. An injury to a ligament caused by twisting or stretching it too far.
10. The tiny building blocks that make up all living things, including our bodies.
13. The electrical signals produced by the brain when it is active.
15. The long tubes in the body that help digest food after it leaves the stomach.
16. Sudden, painful tightness in a muscle that makes it hard to move.
17. Blood vessels that carry blood back to the heart from other parts of the body.
23. The beat of the heart that you can feel in your wrist or neck.
24. The column of bones in your back that supports your body and protects your spinal cord.