Body Systems and Homeostasis

5. is the breaking down of the bonds in food to convert them into organic molecules
8. any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood toward the heart
11. any of the fine branching blood vessels that form a network between the arterioles and venules
14. he system of organs and parts which function in reproduction
15. any of the muscular-walled tubes forming part of the circulation system
16. public organization or government agency that is responsible for legally regulating aspects of human activity
17. your body's central framework
18. the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes
19. The systems that excrete wastes from the body
20. a regulatory substance produced in an organism and transported in tissue fluids such as blood or sap to stimulate specific cells or tissues into action.

1. composed of specialized cells called muscle fibers
2. The organs that take in food and liquids and break them down into substances that the body can use for energy, growth, and tissue repair
3. glands and organs that make hormones and release them directly into the blood so they can travel to tissues and organs all over the body
4. consist of a single muscle cell
6. groups of organs and tissues that work together to perform important jobs for the body
7. the network of organs and tissues that help you breathe
9. the mechanical breakdown of food
10. he network of nerve cells and fibers which transmits nerve impulses between parts of the body
12. composed of cells that have the special ability to shorten or contract in order to produce movement of the body parts
13. the system that circulates blood and lymph through the body, consisting of the heart, blood vessels, blood, lymph, and the lymphatic vessels and glands.