Human Homeostasis

3. a substance that generally with a level of pH lower than 7.
8. A system that is responsible for removing wastes in the body.
9. A small and thin blood vessels that connect the arteries and the veins.
10. A body system which is responsible for protecting your body away from toxins and other viruses.
11. A system inside your body that responsible for ingestion, digestion, and absorption of food.
12. system which surrounds all body tissues and have one function which is to return fluid from the tissues to the central circulation.

1. An organ system which make hormones and release them directly into the blood.
2. Blood vessels which carry oxygen and nutrients away from your heart to your body's tissues.
4. A body system that contains the heart and the blood vessels and moves blood throughout the body.
5. An organ that is part of the lymphatic system.
6. A body system that are involved in the process of breathing.
7. A body system which controls your voluntary actions ( things that you can control ) Involuntary actions ( Things you can't control )