Across
- 2. The upper part of the respiratory system.
- 6. A strong, flexible tissue that allows joints to move easily, cushions bones, and supports soft tissues.
- 8. A coiled tube from 20 to 23 feel long, in which about 90 percent of digestion takes place.
- 10. When oxygen-rich blood travels to all body tissues except the lungs.
- 11. Exhaling, or breathing out, is the action of your lungs getting rid of carbon dioxide and other waste material from your body.
- 14. Blood vessels that carry blood away from the hear to various parts of the body.
- 18. Type of muscle found in organs in blood vessels, and glands.
- 20. The nerves that connect the central nervous system to all parts of the body.
- 21. Muscle also provides your body with stability and protection.
- 22. A muscle that acts as the pump for the circulatory system.
- 23. Includes the brain and the spinal cord.
- 27. A flap of tissue in the back of your mouth that keeps food out of your trachea.
- 28. The message carries that help the different parts of your body communicate with one another.
- 29. A type of connecting tissue that holds bones to other bones at the joint.
- 30. The nervous system that deals with actions that you control.
- 31. The process by which the body breaks down food into smaller pieces that can be absorbed by the blood and sent to each cell in your body.
- 34. A digestive juice produced by the salivary glands in your mouth.
- 35. The walls of your heart.
- 39. Blood vessels that carry blood from all parts of the body back to the heart.
- 40. The group of organs and tissues that carry needed materials to cells and remove their waste products.
- 43. A passageway in your throat that takes air into and out of your lungs.
- 44. Tiny blood vessels carry blood to and from almost all blood cells and connect arteries and veins.
Down
- 1. A gland that helps the small intestine by producing pancreatic juice, a blend of enzymes that break down proteins, carbohydrates, and fats.
- 3. A group of organs that work together to break down foods into substances that your cells can use.
- 4. Includes organs and tissues that transport essential materials to body cells and remove their waste products.
- 5. inside the lungs, and branches off into even smaller tubes.
- 7. Stuff in your saliva and help break down the food.
- 9. The organs that supply your blood with oxygen.
- 12. The measure of ozone, sulfur dioxide, carbon monoxide, and fine particles close to the ground.
- 13. A process in which the body's cells are nourished and energized.
- 15. you body's message and control center.
- 16. The process the body uses to get rid of waste.
- 17. A type of connecting tissue that joins muscle to bones and muscles to muscles.
- 19. A long bundle of neurons that sends messages to and from the brain and all parts of the body.
- 24. The framework of bones and other tissues that support the body.
- 25. The part of the nervous system that deals with actions you do not usually control.
- 26. When blood travels from the heart, through the lungs and back to the heart.
- 32. A tissue in the center of some bones.
- 33. Attached to bones that enable you to move your body.
- 36. The two large organs that exchange oxygen and carbon dioxide.
- 37. Makes up half the volume of blood in the body and is largely water.
- 38. It a large, dome-shaped muscle below the lungs that expands and compresses the lungs, enabling breathing.
- 41. A digestive gland that secretes a substance called bile, which helps to digest fast.
- 42. A small, saclike organ that stores bile until it is needed in the small intestine.