Body Systems and Homeostasis

2. tiny blood vessels that have thin walls
3. The bodily system that consists of the bones, their associated cartilages, and the joints
5. A self-regulating process by which biological systems maintain stability while adjusting to changing external conditions
6. A type of blood vessel that return deoxygenated blood from your organs back to your heart
7. Groups of organs and tissues that work together to perform important jobs for the body
8. The tissues, glands, and organs involved in producing offspring
11. Chemical substances that act like messenger molecules in the body
13. Consist of a single muscle cell
15. The network of organs and tissues that help you breathe
16. When acids, enzymes and other secretions break down the food we eat into nutrients
18. A passive biological system that removes excess, unnecessary materials from the body fluids of an organism
19. When your body mechanically breaks down food, grinding or smashing it into smaller pieces

1. Sequence by which food is broken down and chemically converted so that it can be absorbed by the cells of an organism and used to maintain vital bodily functions
4. An organ that makes hormones that are released directly into the blood and travel to tissues and organs all over the body
9. The system that contains the heart and the blood vessels and moves blood throughout the body
10. The organ system responsible mainly for coordination of bodily reactions, organ monitoring, and information processing
12. The blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body
14. Composed of cells that have the special ability to shorten or contract in order to produce movement of the body parts
17. An organ system responsible for providing strength, keeping up the balance, maintaining posture, allowing movement, and producing heat
20. An organ which produces and releases substances that perform a specific function in the body