1. Tissues Four major tissue types 1.Epithelium 2.Connective 3.Muscle 4.Nervous 3/14/20161

2. 2

3. Classification of Epithelial Tissues Two simple rules 1.Shape of cells (always check the most superficial layer) Squamous (plate-like) Cuboidal Columnar Pseudostratified (appears to be multiple layers) 2.Number of layers Simple (one layer) Stratified (more than one layer) Transitional (cells change shape) 3/14/20163

4. Simple Epithelium Simple squamous Simple cuboidal Simple columnar Pseudostratified 3/14/20164

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6. Simple Squamous 3/14/20166

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22. Simple Cuboidal 3/14/201622

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27. Simple Columnar 3/14/201627

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33. Pseudostratified Columnar 3/14/201633

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42. Stratified Epithelium Stratified squamous Stratified cuboidal Stratified columnar (rare) Transitional 3/14/201642

43. Stratified Squamous 3/14/201643

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51. Stratified Cuboidal 3/14/201651

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55. Transitional 3/14/201655

56. 3/14/201656

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58. 3/14/201658

59. 3/14/201659

60. Stratified Columnar 3/14/201660

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63. Connective Tissues 1. Loose or areolar 2. Dense irregular 3. Dense regular 4. Elastic 5. Reticular 6. Adipose 7. Cartilage Hyaline Elastic Fibrocartilage 8. Blood 9. Bone 3/14/201663

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66. Loose (Areolar) Connective Tissue 3/14/201666

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75. Dense Irregular Connective Tissue 3/14/201675

76. 3/14/201676

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80. Dense Regular Connective Tissue 3/14/201680

81. 3/14/201681

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84. 3/14/201684

85. Elastic Connective Tissue 3/14/201685

86. Elastic Connective Tissue Relatively rare But relatively high concentration in several organs including the largest arteries This image shows a portion of the wall of the aorta Elastin fibers important in the recoil of organs like arteries and lungs 3/14/201686

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90. Reticular Connective Tissue 3/14/201690

91. 3/14/201691

92. 3/14/201692

93. 3/14/201693

94. Adipose Tissue 3/14/201694

95. 3/14/201695

96. 3/14/201696

97. 3/14/201697

98. Hyaline Cartilage 3/14/201698

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103. Elastic Cartilage 3/14/2016103

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107. Fibrocartilage 3/14/2016107

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113. Blood 3/14/2016113

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116. Bone 3/14/2016116

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122. Striated or Skeletal 3/14/2016122

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132. Cardiac 3/14/2016132

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140. Smooth 3/14/2016140

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150. Nerve Cell 3/14/2016150

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152. 3/14/2016152

153. Neuron 3/14/2016153