Ch 11: Pathogens & the Immune System

About This Chapter

Watch the interactive videos in this chapter to gain insightful details on pathogens and the immune system. Explore how the immune system works and why it's so important.

Pathogens & the Immune System - Chapter Summary

This chapter gives you the opportunity to review how the body's immune system works. You'll examine all of the pathogens that can attack the immune system, causing it to kick into action. Autoimmune diseases and allergies are also discussed in this chapter, and you'll examine how disease pathogens are dealt with. After viewing all of the videos, you should be able to:

  • Define adaptive immunity
  • Describe the structure of viruses
  • Differentiate a disease from an infection
  • Identify common antibiotics and vaccines, and discuss antibiotic resistance
  • State the different types of autoimmune diseases

The videos in this chapter use engaging animations and include video tags at the bottom. Clicking on these tags lets you instantly move to a certain section of a video. See how much knowledge you've gained about the immune system and pathogens by using the self-assessment quizzes, which are available both online and as printable worksheets.

9 Lessons in Chapter 11: Pathogens & the Immune System
Test your knowledge with a 30-question chapter practice test
What Is the Immune System? - Our Body's Defense Against Pathogens

1. What Is the Immune System? - Our Body's Defense Against Pathogens

In this lesson, you will be introduced to the immune system. You'll learn about the innate and adaptive immune system, Edward Jenner, haptens and immune tolerance.

What Is Adaptive Immunity? - Definition and Types

2. What Is Adaptive Immunity? - Definition and Types

This lesson will help you distinguish between several different types of immunity. This includes passive immunity, active immunity, naturally acquired immunity and artificially acquired immunity.

What Are Viruses? - Definition, Structure & Function

3. What Are Viruses? - Definition, Structure & Function

In this lesson, you'll learn some historical facts about viruses and the material they are composed of. Find out more as we review the capsid, nucleic acids, the viral envelope, viruses, virions, bacteriophages and virology.

The Differences Between Infection and Disease

4. The Differences Between Infection and Disease

This lesson will go over the differences between an infection and a disease. We'll cover everything from prions and infectivity to opportunistic infections and idiopathic disease. We'll also learn what the etiology of disease is and much more.

Antibiotics and Vaccines

5. Antibiotics and Vaccines

Do you know why children must get regularly vaccinated? Have you ever wondered how an antibiotic works and why they are so widely prescribed? If so, this lesson will help you to understand how changes in medicine have almost eliminated several deadly diseases and added decades to the average person's lifespan.

Pathogens: Antibiotic Resistance and Virulence

6. Pathogens: Antibiotic Resistance and Virulence

Find out more about how the overuse of antibiotics could lead to some serious problems with epidemics or untreatable diseases in the future. You can also discover some of the things that make pathogens harmful and why pathogens don't cause disease in every species they infect.

Allergies and Asthma: Causes, Symptoms & Treatments

7. Allergies and Asthma: Causes, Symptoms & Treatments

This lesson explores the meaning of allergies and asthma and how they may interact with one another at the same time. You'll learn about allergic rhinitis, intrinsic asthma and extrinsic asthma as well as the signs, symptoms, and treatment options of each.

Autoimmune Diseases: Definitions & Types

8. Autoimmune Diseases: Definitions & Types

What is an autoimmune disease? Why does it occur? What are some examples of autoimmune diseases? This lesson will describe myasthenia gravis, multiple sclerosis, type 1 diabetes, and much more.

Immune Deficiency Diseases: Definitions & Types

9. Immune Deficiency Diseases: Definitions & Types

This lesson will teach you about the immune system, what immune deficiency means, why that's dangerous, and about the important causes of such a problem, including HIV/AIDS, SCID, CVID, and more.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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