Unit 3 Vocabulary

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Across
  1. 3. a system of a complex collection of nerves and neurons that transmit signals between different parts of the body
  2. 4. a system including all of the bones and joints in the body.
  3. 5. a reaction
  4. 6. a system of a collection of glands that produce hormones that regulate metabolism, growth and development and tissue function.
  5. 10. (cardiovascular system) delivers nutrients and oxygen to all cells in the body. It consists of the heart and the blood vessels running through the entire body.
  6. 12. a digestive fluid produced by the liver and stored in the gallbladder
  7. 14. a response that is not under conscious control, such as the reflex contraction of the pupils in response to bright light.
  8. 15. a thing or event that evokes a specific functional reaction in an organ or tissue
  9. 17. the system consists of the parts of the body that work together to turn food and liquids into the building blocks and fuel
  10. 19. chemical messengers that are secreted directly into the blood
  11. 20. a blood vessel that takes blood away from the heart to one or more parts of the body
Down
  1. 1. a deliberately chosen reaction to a stimulus
  2. 2. the ability to maintain a relatively stable internal state that persists despite changes in the world outside
  3. 7. also known as nerve cells, send and receive signals from your brain.
  4. 8. a system including smooth, cardiac, and skeletal muscle that move to facilitate body functions like heartbeats, digestion, and moving bones.
  5. 9. the act of tightening muscles
  6. 11. blood vessels that carry blood towards the heart.
  7. 13. a tough, flexible connective tissue, that reduces friction between joints, holds bones together, and helps support weight
  8. 16. structures connecting two or more adjacent parts of the skeleton.
  9. 18. a system including skin, hair, and nails to protect the body from outside impact