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7th Grade Chapter 3 Lesson 6
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7th Grade Chapter 3 Lesson 6

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7th Grade Chapter 3 Lesson 6 7th Grade Chapter 3 Lesson 6 Presentation Transcript

  • 7 th Grade Chapter 3 Lesson 6 Pgs. 108-115 For Student Use Only
  • From Tissues to Cells
    • Body is made up of systems that are made up of organs that are made up of cells.
    • Tissue: a group of structurally similar cells which are designed to work together as a unit in order to perform a particular function
    • 4 Main Types of Tissues
      • Epithelial
      • Muscle
      • Connective
      • Nerve
  • From Tissues to Cells
    • Tissues:
      • Epithelial Tissue:
        • Protective barrier
        • Called epithelium
        • Quickly replace damage cells
  • From Tissue to Cells
    • Tissue:
      • Muscle Tissue:
        • Produce Motion
        • 3 Types:
          • Skeletal Muscle- voluntary muscle that attach to bone
          • Smooth Muscle- involuntary- controls diaphragm and stomach
          • Cardiac Muscle- Heart muscles
        • Must have energy and rest
  • From Tissue to Cells
    • Tissue:
      • Connective Tissue:
        • Links areas of the body together
        • Tissue found in bone, cartilage, fat, and blood
          • Blood- the liquid tissue that function as the major transportation system for the body
          • Bone- found in skeletal system and is the most rigid of all the tissues
  • From Tissue to Cells
    • Tissue:
      • Connective Tissue:
        • Tendons- dense connective tissue that connects muscles to bones
        • Ligaments- dense connective tissue that connects bone to bone
        • Loose connective tissue- found just below epithelial tissue- contains many blood vessels
  • From Tissue to Cells
    • Tissue:
      • Nerve Tissue:
        • Convey information from brain, spinal cord, and body
        • Has nuerons (neurons are nerve cells)
  • From Tissue to Cells
    • Tissues:
      • All tissues are different
      • Contain different amounts of intercellular material
        • Epithelium- loose and flexible
        • Connective- extremely loose and flexible
        • Bone- strong and rigid
  • From Tissues to Cells
    • Tissues to Cells:
      • The cell is the smallest unit of life
      • Cells are specialized
        • Cells do all the work of the body
        • Cells have their own job to do
        • Cells also all work together and depend on each other