body systems

2. an organ that makes one or more substances, such as hormones, digestive juices, sweat, tears, saliva, or milk
4. takes in oxygen into the body when we inhale, and release carbon dioxide on exhale
8. a tube forming a part of the blood circulation system of the body
9. system that breaks down food to give the body energy
11. occurs to increase the change or output
13. nervous system, endocrine system, circulatory system are examples of
16. composed of cells that have the special ability to shorten or contract in order to produce movement of the body parts
17. system that removes waste products from the body
18. system that works with the skeletal system to allow the body to move

1. system system that responds to stimuli in the environment and controls body functions
3. a normal biological response in which the effects of a reaction slow or stop that reaction
5. system responsible for creating offspring
6. made up of glands that make hormones
7. system that carries needed materials to the body cells
10. a state of balance among all the body systems needed for the body to survive and function correctly
12. The endocrine system controls body processes through the production, secretion, and regulation of hormones
14. carries blood away from the heart and to other parts of the body
15. a single cylindrical muscle cell is a?