body systems and homeostasis

5. composed of cells that have the special ability to shorten or contract in order to produce movement of the body parts
6. chemical substances that act like messenger molecules in the body
8. a person's ability to adjust and control their energy level, emotions, behaviours and attention
9. any of the muscular-walled tubes forming part of the circulation system by which blood
10. a system that helps maintain internal chemical homeostasis and prevent damage to the body
12. any of the fine branching blood vessels that form a network between the arterioles and venules
14. the system that circulates blood and lymph through the body
16. an organ which produces and releases substances that perform a specific function in the body
17. groups of organs and tissues that work together to perform important jobs for the body
18. the network of nerve cells and fibers which transmits nerve impulses between parts of the body
19. the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes
20. an organ system consisting of skeletal, smooth, and cardiac muscle

1. mechanical breakdown of food
2. any of the tubes forming part of the blood circulation system of the body
3. consists of the gastrointestinal tract plus the accessory organs of digestion
4. messenger system comprising feedback loops of the hormones released by internal glands
7. the tissues, glands, and organs involved in producing offspring
11. consist of a single muscle cells
13. a biological system consisting of specific organs and structures used for gas exchange in animals and plants
14. the breaking down of the bonds in food to convert them into organic molecules
15. your bodys central framework