Organization of the Body

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Across
  1. 3. a tube-shaped sac attached to and opening into the lower end of the large intestine in humans and some other mammals
  2. 4. large internal organs contained in the body cavities, especially in the abdominal cavity
  3. 6. group of organs that work together to perform complex body functions.
  4. 7. The large air passages that lead from the trachea (windpipe) to the lungs.
  5. 9. the small sac-shaped organ beneath the liver, in which bile is stored after secretion by the liver and before release into the intestine.
  6. 11. regions within the chromosome. Each chromosome has several thousand of these that determine hereditary
  7. 12. basic unit of all living things
  8. 16. a large gland behind the stomach which secretes digestive enzymes into the duodenum
  9. 17. of a number of organized or specialized structures within a living cell.
  10. 18. an organ of soft nervous tissue contained in the skull of vertebrates, functioning as the coordinating center of sensation and intellectual and nervous activity.
  11. 20. a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
  12. 21. largest structure within the cell, usually spherical and centrally located. It contains chromosomes for cellular reproduction and is the control center and source of energy production for the cell.
Down
  1. 1. a hollow muscular organ that pumps the blood through the circulatory system by rhythmic contraction and dilation
  2. 2. group of similar cells that performs a specific function
  3. 5. gel-like fluid inside the cell
  4. 8. forms the boundary of the cell
  5. 10. a dome-shaped muscular partition separating the thorax from the abdomen in mammals. It plays a major role in breathing
  6. 13. two or more types of tissues that together perform special body functions.
  7. 14. an organ in the human or animal body which secretes particular chemical substances for use in the body or for discharge into the surroundings
  8. 15. comprises each gene; is a genetic material that regulates the activities of the cell.
  9. 19. It is both the longest and the strongest bone in the human body, extending from the hip to the knee.