TISSUES

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TISSUES
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Tissue A Definition
A group of connected, interdependent cells that
cooperate to perform a specific function
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Categories of Tissue
1. Epithelial Tissue 2. Connective Tissue 3.
Muscle Tissue 4. Nervous Tissue
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Epithelial Tissues
General Features
Cellular Layer Basement Membrane
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Epithelial Tissues
General Features
Cellular Layer Basement Membrane No Blood
Supply Touching Each Other Rapid Rate of Cell
Reproduction
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Epithelial Tissues
Structural Classification
Cell Shapes
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Squamous
Cuboidal
Columnar
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Epithelial Tissues
Structural Classification
Cell Shapes Cell Layers
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Simple
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Stratified
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Epithelial Tissues
Major Types
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Simple Squamous Epithelium
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Simple Squamous Epithelium
Function Exchange Sample Locations Alveoli,
capillaries
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Stratified Squamous Epithelium
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Stratified Squamous Epithelium

• Function Protection
• Sample Locations Skin, Mouth, Repro tracts

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Simple Cuboidal Epithelium

• Function Absorption or Secretion
• Sample Locations Kidney, Hormone Glands

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Simple Columnar Epithelium

• Function Absorption (or Secretion)
• Sample Location Digestive Tract

Microvilli
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Simple Columnar

• Note goblet cells

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Pseudostratified Columnar Epithelium
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Pseudostratified Columnar Epithelium
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Pseudostratified Columnar Epithelium

• Function Absorption, Secretion, Movement
• Sample Locations Respiratory Repro Ducts

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Transitional Epithelium
Function Stretchability Sample Location Urinary
Bladder