1. System Interactions & Homeostasis
(HB Chapter 1) Lessons 2 and 3

2. Inner framework that includes all the bones in your body.
skeleton

3. Attached to the bones of your skeleton and provide the force that moves your bones.
skeletal muscles

4. Place in the body where two bones come together.
joint

5. Substance that you get from food and that your body needs to carry out processes, such as contracting muscles.
nutrient

6. Process where nutrients move from the digestive system into the bloodstream.
absorption

7. Organs that release chemical signals directly into the bloodstream.
glands

8. A signal in the environment that makes you react.
stimulus

9. What your body does in reaction to a stimulus.
response

10. Chemical signals released by the endocrine system and affect growth and development.
hormones

11. The condition in which an organism’s internal environment is kept stable in spite of changes in the outside environment.
homeostasis

12. The reaction of your body to possible threatening, challenging, or uncomfortable events.
stress

13. GOOD LUCK!!!