1. Please write down these questions and the correct answers
Body Systems Review
Please write down these questions and the correct answers

2. The body’s internal environment must stay
The same as the external environment
Exactly the same all the time
Away from sudden outside temperature changes
Within narrow ranges that support life

3. Each organ system coordinates/ communicates with other organ systems by
Chemical and nerve signals
Connective and muscular tissue
Identical sensors
Their stem cells

4. Thoughts, movements, and some life processes are controlled by the
Cardiovascular system
Nervous system
Musculoskeletal system
Endocrine system

5. The endocrine system uses chemical signals called
Target cells
Neurons
Hormones
Glands

6. Blood in veins is Travelling to the heart Carrying oxygen
Leaving the lungs
Travelling from the heart

7. When your heart and breathing speeds up or slows down, your body is trying to
Increase lung volume
Maintain homeostasis
Bring in more carbon dioxide
Increase its red blood cells

8. The major function of the lymphatic system is to
Conduct messages from sensors to the brain
Return fluid to the capillaries
Transport blood from neurons to organs
Collect excess fluid from the body

9. Muscles are… Controlled by voluntary movement only
Connected directly to bones
Made of many, long, fibrous, bundled cell tissues
Not in the digestive system

10. The immune system Cures viruses Is responsible for allergic reactions
Is controlled by voluntary action
Includes red & white blood cells, muscles, and the thymus

11. The main function of the digestive system is to
Destroy potentially harmful invaders
Maintain constant temperature
Make it possible for nutrients to be absorbed by the body’s cells
Both A and C

12. The long-term effects of the disruption of homeostasis include
The immune system takes control
Regulation of the internal environment
Establishment of feedback systems
Destruction of organ systems and eventual death