Miscellaneous part 1

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Across
  1. 5. any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood toward the heart.
  2. 7. your body's central framework.
  3. 8. an organ in the human or animal body which secretes particular chemical substances for use in the body or for discharge into the surroundings.
  4. 12. the network of organs and tissues that help you breathe. It includes your airways, lungs and blood vessels
  5. 14. Chemical digestion is the breaking down of the bonds in food to convert them into organic molecules. Physical digestion is the mechanical breakdown of food.
  6. 15. a public organization or government agency that is responsible for legally regulating aspects of human activity
  7. 16. consist of a single muscle cell.
  8. 17. the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.
  9. 18. the blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body.
  10. 19. the system that circulates blood and lymph through the body, consisting of the heart, blood vessels, blood, lymph, and the lymphatic vessels and glands.
  11. 20. the network of nerve cells and fibers which transmits nerve impulses between parts of the body.
Down
  1. 1. The 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.
  2. 2. A system is an organization of varying numbers and kinds of organs so arranged that together they can perform complex functions for the body.
  3. 3. The tissues, glands, and organs involved in producing offspring (children).
  4. 4. 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.
  5. 6. 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.
  6. 9. any of the fine branching blood vessels that form a network between the arterioles and venules.
  7. 10. composed of cells that have the special ability to shorten or contract in order to produce movement of the body parts.
  8. 11. The system in the body composed of muscle cells and tissues that brings about movement of an organ or body part
  9. 13. The systems that excrete wastes from the body.