Unit 4 - Human Body

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Across
  1. 2. blood cells produced in bone marrow that fight disease
  2. 4. largest internal body organ in which bile is produced
  3. 7. clear, yellowish portion of the blood
  4. 10. hormone produced by the pancreas that maintains blood sugar levels
  5. 11. respiration that occurs between the atmosphere and the blood
  6. 13. portion of the nervous system consisting of sensory and motor neurons
  7. 17. one of the tissue flaps in the veins that prevents backflow of blood
  8. 18. process of taking in food for growth and energy
  9. 20. regulation of an organism's internal environment to maintain conditions needed for life
  10. 21. organ in which gas exchange takes place
  11. 23. the physical digestion of food that occurs when food is chewed and churned
  12. 26. movement of air into and out of the lungs
  13. 27. organic compound needed in small amounts for the body's metabolic activities
  14. 28. inorganic compound that is used as a building material for the body and is involved in metabolic functions
  15. 30. digestion that uses enzymes such as amylase
  16. 31. blood vessel that carries oxygenated blood from the heart
  17. 32. intestine at the end of the digestive tract involved primarily in water absorption
  18. 33. intestine that is the longest part of the digestive tract
Down
  1. 1. division of the skeleton that includes bones of the vertebral column, ribs, skull, and sternum
  2. 3. substance that is produced by an endocrine gland
  3. 5. blood that carries deoxygenated blood back to the heart
  4. 6. Units used to measure the energy content of food
  5. 8. all the chemical reactions that occur within an organism
  6. 9. respiration between body cells and the blood
  7. 12. division of the skeleton that includes bones of arms, legs, hips, and shoulders
  8. 14. blood cell that transports oxygen to all the body cells
  9. 15. flat cell fragment that functions in blood clotting
  10. 16. organ that pumps oxygenated blood to the body and deoxygenated blood to the lungs
  11. 19. nitrogenous waste product of the excretory system
  12. 22. the "master gland" that regulates many body functions
  13. 24. blood vessels where an exchange of materials occurs between blood and body cells
  14. 25. organ that filters out waste, water, and salt from the blood
  15. 29. portion of nervous system consisting of the brain and spinal cord