Epithelial Tissue

Histology: The Study of “Tissues”

4 Tissue Types:

1. Epithelial Tissue

2. Nervous Tissue

3. Muscle Tissue

4. Connective Tissue

Chemicals

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Cells

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Tissues

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Organs

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Organ Systems

Epithelia Tissue: Covering exposed surfaces, Lining internal passageways and chambers, and producing glandular secretions.

• Cells bound tightly together

• Surface is exposed to environment

• Attach to underlying Connective Tissue

• Avascular: No Blood Vessels

• Continual replacement

Functions:

• Provides physical protection

• Controls permeability

• Provides sensation

• Produced specialized secretions