Body Systems

3. Long structure of neurons that sends signals throughout the entire body.
5. An action that cannot be controlled by thinking about it.
8. Intestine Long tube connected to the small intestine where water is absorbed from food waste.
10. Intestine Long tube connected to the stomach where nutrient absorption occurs,
13. Tiny vessels that allow important materials to enter your body’s cells.
15. Tissue that connects bone to bone.
16. Where two or more bones meet
17. An action that can be controlled by thinking about it.
19. Place that receives air, food and liquids from the mouth & nose.
22. The different ways our body detects and reacts to stimuli.
23. Cells in the nervous system that transmit signals to one another.
25. Tube that carries urine out of the body.
27. Long tube that air travels down after being inhaled.
28. Organ where food is broken down into small molecules.
29. Special molecules that detect and receive stimuli.
30. Organ that filters waste from the blood.
31. Tube that connects the kidneys to the bladder.
32. The ability to receive information about the outside environment through physical contact with the skin.
33. Organ that stores urine.
34. Large muscle below the lungs that contracts/relaxes as you breathe.
35. Main organs of the respiratory system that inhale and exhale air.

1. Microscopic sacs where gas exchange occurs.
2. Changes in an organism’s environment that causes a reaction.
3. The ability of the eyes to detect and receive light waves so the brain can form it into images.
4. Soft tissue that can contract and relax and allows you to move.
6. The ability to detect different odors with your nose.
7. Pair of tubes connecting the trachea to the lungs.
9. Muscular tube that connects the mouth to the stomach.
11. Vessel that usually carries low-oxygen blood toward the heart.
12. Strong, flexible tissue that protects bones & joints
14. Vessel that usually carries high-oxygen blood away from the heart.
18. Tissue that connects bone to muscle.
20. The ability to detect sound waves with your ears.
21. Chamber that pumps blood out of the heart.
24. The ability to tell the difference between flavors in your mouth.
26. Chamber where blood enters the heart.
33. Organ that receives, processes, responds to, and stores information.