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