The characteristics of the epithelial surface that protects against pathogens. Introduction: Physical and chemical barriers protect the body against pathogenic invasions. The skin that covers the exterior of the body and the epithelial surface that lines the internal body cavities and ducts, act as the first line of defense against pathogens.

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Chapter 45.1, Problem 1SB

Summary Introduction

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The characteristics of the epithelial surface that protects against pathogens.

Introduction:

Physical and chemical barriers protect the body against pathogenic invasions. The skin that covers the exterior of the body and the epithelial surface that lines the internal body cavities and ducts, act as the first line of defense against pathogens.

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