📚 Learning Guide
Barriers to Pathogens
hard

Which of the following substances serves as a physical and chemical barrier against pathogens, and why is it effective in preventing infections?

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Learning Path
Learning Path

Question & Answer
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2
Review Options
3
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4
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Choose AnswerChoose the Best Answer

A

Mucus

B

Sebum

C

Sweat

D

Earwax

Understanding the Answer

Let's break down why this is correct

Sebum is an oily film produced by sebaceous glands on the skin. Other options are incorrect because Many think mucus can kill germs, but it mainly traps them and moves them out; Sweat helps cool the body and has some antimicrobial ingredients.

Key Concepts

Innate immune response
Physical barriers to infection
Chemical barriers to infection
Topic

Barriers to Pathogens

Difficulty

hard level question

Cognitive Level

understand

Deep Dive: Barriers to Pathogens

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Definition
Definition

Barriers to Pathogens refer to the various defenses in the body that prevent harmful microorganisms from entering and causing infection. These barriers include mucus, skin oils, and other physical and chemical defenses that help protect against pathogens, contributing to the body's innate immune response.

Topic Definition

Barriers to Pathogens refer to the various defenses in the body that prevent harmful microorganisms from entering and causing infection. These barriers include mucus, skin oils, and other physical and chemical defenses that help protect against pathogens, contributing to the body's innate immune response.

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