Across
- 2. a messenger system comprising feedback loops of the hormones released by internal glands of an organism directly into the circulatory system, regulating distant target organs.
- 7. It consists of the heart, which is a muscular pumping device, and a closed system of vessels called arteries, veins, and capillaries.
- 8. the center command of your body
- 9. the internal framework of the human body.
- 11. the process in our body that help us from getting infected by diseases, and virus.
- 12. the tendency towards a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.
Down
- 1. A backup of urine can cause a kidney infection.
- 3. a biological system consisting of specific organs and structures used for gas exchange in animals and plants.
- 4. the set of organs forming the outermost layer of an animal's body.
- 5. consists of the gastrointestinal tract plus the accessory organs of digestion.
- 6. an organ of soft nervous tissue contained in the skull of vertebrates, functioning as the coordinating center of sensation and intellectual and nervous activity.
- 10. an organ system consisting of skeletal, smooth, and cardiac muscles.