A Scientific Crossword

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Across
  1. 4. The mouth, esophagus, stomach, small and large intestines are all major organs of the ______________ system.
  2. 5. As sweat _________ heat is drawn away from the skin.
  3. 6. People immersed in cold water have a higher vulnerability of getting ____________.
  4. 7. A stress hormone that is released when you are cold, afraid, stressed or feel strong emotions and signs of this hormone may include goosebumps, tears, sweaty palms, trembling hands, an increase in blood pressure, a racing heart and the feeling of 'butterflies' in the stomach.
  5. 9. The result, action and goal is opposite to that of vasoconstriction.
  6. 12. The major role of the excretory system is "to filter out cellular wastes, toxins and excess water or nutrients from the ______________ system."
  7. 14. When the hairs rise of a fur covered animal, like our primal ancestors, during the phenomenon 'goosebumps' the heat is trapped against the skin, lacking fur humans, use ________ to produce the same result.
  8. 16. The _____________ system directs behaviour and movement along with the help of the endocrine system controls physiological processes.
  9. 18. The ____________ system provides a gas exchange between the blood and the environment.
  10. 20. An involuntary response to cold that is a trait inherited from our ancestors however, it has no effect on body temperature.
  11. 21. "Symptoms may include headache, chills and nausea progressing to confusion, delirium and unconsciousness."
  12. 22. Blood is an example of _________ tissue.
  13. 24. ______ are not considered hibernators because their body temperatures remain relatively high.
Down
  1. 1. There are 3 types of muscle tissue, skeletal, smooth and cardiac, all of which possess the special ability to ___________.
  2. 2. When body temperatures get to high and leave the range, death may result without immediate ___________ attention.
  3. 3. "Examples of __________ are keeping a constant level of oxygen in the blood, regulating blood sugar, and preventing the build up of waste products in the body."
  4. 4. You need water on a hot day to replace the water you lose when you sweat and to prevent ____________.
  5. 8. A voluntary action that, through movement, is extremely productive and very much encouraged in warming up the body when you are cold.
  6. 9. An involuntary response to a low body temperature that constricts blood vessels near the skin in an effort to prevent heat loss.
  7. 10. The immune system is also referred to as the __________ system.
  8. 11. A compound produced by insects that lowers the freezing point of liquids in the body so that ice crystals do not form.
  9. 13. Nerve tissue is also found in parts of sensory organs such as the ________ in eye.
  10. 15. "Sweating has much less effect in ________ conditions."
  11. 17. A small part of the brain that manages body temperature, hunger, fatigue as well as thirst and is found at the top of the brainstem.
  12. 19. To maintain equilibrium the body uses the following systems: the nervous system and the ____________ system.
  13. 23. "Something that occurs consciously, with thought and will."