Ch 23: Immune Disorders & Infectious Conditions

About This Chapter

Watch online video lessons and learn about the causes and prevention of disease as well as sound health behaviors. Take advantage of the short quizzes that follow each lesson to gauge your progress.

Immune Disorders & Infectious Conditions - Chapter Summary and Learning Objectives

This chapter's lessons will teach you about the various pathogens that can make us sick and how our body's immune system fights back. Topics covered include adaptive immunity, viruses, allergies and autoimmune diseases. Other lessons cover health behaviors and health promotion. By the end of this chapter, you should have a solid understanding of:

  • The immune system
  • Viruses - how they were discovered and their structure
  • Methods of disease prevention and control
  • Extrinsic and intrinsic asthma
  • Sexually transmitted infections and how to prevent them
  • Health behavior and health promotion

Video Objective
What is the Immune System? - Our Body's Defense Against Pathogens This lesson teaches you what the immune system is and how it works.
What is Adaptive Immunity? - Definition and Types Find out about various types of adaptive immunity and how they work.
What are Viruses? - Definition, Structure and Function In this lesson, we'll look at viruses and examine their components.
Disease Control and Prevention Learn how to prevent and control the spread of disease through methods like sanitation and vaccination.
The Differences Between Infection and Disease In this lesson, we'll distinguish between infection and disease.
The Spread of Disease: Endemic, Epidemic and Pandemic This lesson defines endemic, epidemic and pandemic disease models and provides a comparison.
Pathogens and Disease: Definitions, Types and Causes This lesson describes the most common pathogens affecting humans and the diseases they cause.
Antibiotics and Vaccines In this lesson, we'll examine how antibiotics work against pathogens and how vaccines prevent disease.
Pathogens: Antibiotic Resistance and Virulence Explore how pathogens develop a resistance to antibiotics and the consequences of resistance.
Allergies and Asthma: Causes Symptoms and Treatments Learn the causes, symptoms and treatment options for allergies and asthma.
Autoimmune Diseases: Definitions and Types Learn the definition of autoimmune disease and identify some common types, including type 1 diabetes, Hashimoto's thyroiditis and vasculitis.
Immune Deficiency Diseases: Definitions and Types This lesson covers immune deficiency disease and discusses some types, including human immunodeficiency virus/acquired immune deficiency syndrome.
Sexually Transmitted Infections In this lesson, you'll learn about the types of sexually transmitted infections, how they are spread and treatment options.
Reducing Your Risk for Sexually Transmitted Infections Understand methods of preventing these infections.
Health Behaviors and Promotion Learn how to define and distinguish between health behavior and disease prevention.

15 Lessons in Chapter 23: Immune Disorders & Infectious Conditions
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.

Disease Control & Prevention

4. Disease Control & Prevention

This lesson will discuss the many different ways by which people can control disease. Everything from vaccination to sterilization and beyond will be mentioned so that you can better appreciate the large arsenal of tools at our disposal.

The Differences Between Infection and Disease

5. 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.

The Spread of Disease: Endemic, Epidemic & Pandemic

6. The Spread of Disease: Endemic, Epidemic & Pandemic

This lesson will talk about what an endemic disease is and how it is different from an epidemic. We'll also discuss how an epidemic differs from something known as a pandemic. Finally, we'll look at some examples of each to help solidify these points.

Pathogens and Disease: Definitions, Types & Causes

7. Pathogens and Disease: Definitions, Types & Causes

There are many different types of pathogens and many problems they cause. This lesson will teach you about four main types of pathogens, examples of each, and what problems they cause.

Antibiotics and Vaccines

8. 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

9. 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

10. 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

11. 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

12. 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.

Sexually Transmitted Infections: Types, Transmission, Symptoms & Treatments

13. Sexually Transmitted Infections: Types, Transmission, Symptoms & Treatments

This lesson will teach you about three major bacterial and three important viral sexually transmitted diseases, what problems they cause, and how they are treated.

Reducing Your Risk for Sexually Transmitted Infections

14. Reducing Your Risk for Sexually Transmitted Infections

This lesson will describe for you the many ways by which you can help prevent a terrible STD from affecting your body, including abstinence, mutual monogamy, and more!

Health Behaviors and Promotion: Definition & Explanation

15. Health Behaviors and Promotion: Definition & Explanation

In this lesson, we will discuss health promotion, health behavior, and the three different kinds of disease prevention strategies you can employ to stay healthy for as long as possible.

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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