Moving Materials and Processing Info

2. system made of sensory and motor neurons that transmit information between the central nervous system (CNS) and the rest of the body.
5. two narrow tubes that carry air into the lungs from the trachea.
13. a vessel that carries blood toward the heart.
14. a system that transports materials through blood using vessels.
17. a tubelike structure of neurons that sends signals to and from the brain.
19. system made up of the brain and the spinal cord.
21. a type of vascular tissue that carries water and dissolved nutrients from the roots to the stem and the leaves.
22. a tiny blood vessel that delivers supplies to an individual cell and takes away waste materials.
24. a small opening in the epidermis, or surface layer, of a leaf.

1. system that transports blood and other fluids into open spaces that surround organs in the body.
3. a vessel that carries blood away from the heart.
4. a tube that is held open by C-shaped rings of cartilage; connects the larynx and the bronchi.
6. the part of an organism that gathers, processes, and responds to information.
7. a type of vascular tissue that carries dissolved sugars throughout a plant.
8. the lower two chambers of the heart.
9. specialized plant tissue composed of tubelike cells that transports water and nutrients in some plants.
10. the part of your nervous system that detects or senses the environment.
11. special structures in all parts of the sensory system that detect stimuli.
12. the upper two chambers of the heart.
15. microscopic sacs or pouches at the end of the bronchioles where gas exchange occurs.
16. a tubelike passageway at the top of the throat that receives air, food, and liquids from the mouth or nose.
18. the basic functioning unit of the nervous system; a nerve cell.
20. a large muscle below the lungs that contracts and relaxes as air moves into and out of your lungs.
23. the main organs of the respiratory system.