Across
- 2. network of nerves that relaxes your body after periods of stress or danger
- 6. a type of blood cell that is made in the bone marrow and found in the blood. Red blood cells contain a protein called hemoglobin, which carries oxygen from the lungs to all parts of the body
- 8. the part of your nervous system that carries signals related to your “fight-or-flight” response
- 10. amount of water vapor in the air
- 13. beneficial physiological adaptations that occur during repeated exposure to a hot environment
- 14. part of your nervous system that lies outside your brain and spinal cord
Down
- 1. a component of the peripheral nervous system associated with the voluntary control of body movements via skeletal muscles
- 3. part of your nervous system. It consists of your brain and spinal cord
- 4. a component of the peripheral nervous system that regulates involuntary physiologic processes including heart rate, blood pressure, respiration, digestion, and sexual arousal
- 5. the evolutionary process whereby an organism becomes better able to live in its habitat or habitats
- 7. exchange of oxygen and carbon dioxide
- 9. delicate blood vessels that exist throughout your body
- 11. elevation of an object above a surface
- 12. state of balance among all the body systems needed for the body to survive and function correctly