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Ch 6: The Disease Process: Help and Review

About This Chapter

The Disease Process chapter of this Microbiology Help and Review course is the simplest way to master the disease process in humans. This chapter uses simple and fun videos that are about five minutes long, plus lesson quizzes and a chapter exam to ensure you learn the essentials of the disease process.

Who's it for?

Anyone who needs help learning or mastering microbiology material will benefit from taking this course. You will be able to grasp the subject matter faster, retain critical knowledge longer and earn better grades. You're in the right place if you:

  • Have fallen behind in understanding how diseases are transmitted, how they spread and how they can be prevented.
  • Need an efficient way to learn about the disease process.
  • Learn best with engaging auditory and visual tools.
  • Struggle with learning disabilities or learning differences, including autism and ADHD.
  • Experience difficulty understanding your teachers.
  • Missed class time and need to catch up.
  • Can't access extra science learning resources at school.

How it works:

  • Start at the beginning, or identify the topics that you need help with.
  • Watch and learn from fun videos, reviewing as needed.
  • Refer to the video transcripts to reinforce your learning.
  • Test your understanding of each lesson with short quizzes.
  • Submit questions to one of our instructors for personalized support if you need extra help.
  • Verify you're ready by completing the Disease Process chapter exam.

Why it works:

  • Study Efficiently: Skip what you know, review what you don't.
  • Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
  • Be Ready on Test Day: Use the Disease Process chapter exam to be prepared.
  • Get Extra Support: Ask our subject-matter experts any relevant question. They're here to help!
  • Study With Flexibility: Watch videos on any web-ready device.

Students will review:

In this chapter, you'll learn the answers to questions including:

  • How do diseases and infections differ?
  • What are the different types of diseases?
  • What symbiotic reactions occur in diseases?
  • How do diseases progress from onset to recovery?
  • How do endemics, epidemics and pandemics differ?
  • What are nosocomial infections?
  • What are some methods for controlling and preventing diseases?

43 Lessons in Chapter 6: The Disease Process: Help and Review
Test your knowledge with a 30-question chapter practice test
Disease Control & Prevention

1. 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

2. 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.

Preventing Disease: Normal Human Flora

3. Preventing Disease: Normal Human Flora

This lesson will give you a basic understanding of what human flora is. You'll learn about the different locations of flora, such as the gut, and what mutualistic, commensal, and opportunistic microbes are.

Symbiotic Interactions in Disease: Definition, Theory & Examples

4. Symbiotic Interactions in Disease: Definition, Theory & Examples

This lesson will describe something known as symbiosis and symbionts. We will explore the three main types and examples of symbiotic relationships as we define mutualism, parasitism, and commensalism.

Progress of Disease: Infection to Recovery

5. Progress of Disease: Infection to Recovery

This lesson will teach you about the five basic steps of the development of disease, what they are called, and what occurs during each phase. We'll talk about the incubation and prodromal period as well as the periods of convalescence, decline, and illness.

The Different Routes of Infectious Disease Transmission

6. The Different Routes of Infectious Disease Transmission

This lesson will discuss the different ways you can get sick. We'll discuss how pathogenic microbes can be transmitted to you or someone else as we explore horizontal and vertical transmission as well as vectors, vehicles, and fomites.

The Spread of Disease: Endemic, Epidemic & Pandemic

7. 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.

What Are the Types of Diseases?

8. What Are the Types of Diseases?

This lesson will focus on the different types of diseases that a person may develop or contract. We'll discuss the differences between acute, chronic, primary, secondary, local, and systemic diseases.

Nosocomial Infections: Definition, Causes & Prevention

9. Nosocomial Infections: Definition, Causes & Prevention

In this lesson, you will learn about what a nosocomial infection is. We'll discuss, in particular, the many reasons you may get such an infection, which types of pathogens are most likely to cause one, and the most common places in your body you may acquire one.

Establishment of Disease: Entry, Dose & Virulence

10. Establishment of Disease: Entry, Dose & Virulence

This lesson will delve into what predisposes an individual to get sick. We'll talk about things like the entry, dose, and virulence of a pathogen and how they play a role in the establishment of a disease.

Insertion Mutation: Diseases & Examples

11. Insertion Mutation: Diseases & Examples

Insertion mutations occur when extra genetic material is added to a DNA sequence. Learn about insertion mutations and some of the diseases they can cause in this lesson.

Clostridium Ramosum: Symptoms & Treatment

12. Clostridium Ramosum: Symptoms & Treatment

Did you know that some microbes can cause disease, while others normally do not unless you are very young or have a poor immune system? In this lesson, you will learn about Clostridium ramosum, a bacterium that typically does not cause disease, but may cause an infection.

Symbiont: Definition & Explanation

13. Symbiont: Definition & Explanation

In this lesson, you'll learn about different symbionts and symbiotic relationships, including parasitism, mutualism, commensalism, amensalism, synnecrosis, and neutralism.

What is a Vaccine? - Definition, Function & Examples

14. What is a Vaccine? - Definition, Function & Examples

Without vaccines, many deadly diseases would have devastated a large portion of the human population. In this lesson, we will learn about how vaccines work and why they have great importance in our world.

Cyst: Definition, Types & Treatment

15. Cyst: Definition, Types & Treatment

A cyst is a closed sac of tissue filled with gas, fluid or other material. This lesson will explain the characteristics of a cyst and highlight some of the many different types of cysts as well as various treatments for them.

Ectropion: Definition, Symptoms & Treatment

16. Ectropion: Definition, Symptoms & Treatment

Ectropion is a condition that affects your eyelids - part of the eyelid flips outward, exposing the inner eyelid and the eye itself. Read this lesson to learn why this happens, what the symptoms are, and how to treat it.

Etiology of Disease: Definition & Example

17. Etiology of Disease: Definition & Example

In this lesson, you're going to learn what etiology means and how etiology is broken down into three main categories. You'll also go over a concrete example to demonstrate the etiology of a disease.

Exudate: Definition & Types

18. Exudate: Definition & Types

The skin has the power to heal itself, but this healing process usually produces a fluid known as exudate. In this lesson, you'll learn about the various types of exudate and what each reveals about the health of a wound.

Pathogenesis: Definition & Example

19. Pathogenesis: Definition & Example

In this lesson, we'll learn about pathogenesis. We'll examine the steps that are involved and follow an example of going through the pathogenesis process.

Pediculosis: Definition, Symptoms & Treatment

20. Pediculosis: Definition, Symptoms & Treatment

After completing this lesson, you will be able to define pediculosis and describe the symptoms and treatment for this condition. A short quiz follows this lesson.

Radical Neck Dissection: Definition, Complications & Side Effects

21. Radical Neck Dissection: Definition, Complications & Side Effects

A radical neck dissection is just like it sounds: a radical procedure where the neck is dissected to remove cancerous growths. Read this lesson to learn more about the procedure and its potential complications or side effects.

What Is a Goiter? - Causes, Symptoms & Treatment

22. What Is a Goiter? - Causes, Symptoms & Treatment

What do former president George H. Bush, Rod Stewart, Muhammed Ali, Carl Lewis, and Joe Piscopo have in common? They were all diagnosed with goiter. In this lesson, we'll go over what goiters are, as well as their causes, symptoms and available treatments.

What Is a Morbidity Rate? - Definition, Formula & Calculation

23. What Is a Morbidity Rate? - Definition, Formula & Calculation

The term 'morbidity rate' might bring up images that are, well, morbid. And the term indeed deals with dark topics -- it's the rate at which an event, usually an illness, occurs in a population. Learn more in this lesson about its calculation and its usefulness for predicting certain illnesses.

What Is a PET Scan? - Definition, Uses & Side Effects

24. What Is a PET Scan? - Definition, Uses & Side Effects

Have you ever wondered how doctors are able to diagnose diseases of the internal organs? How are they able to see what the organs look like? A PET scan is a diagnostic procedure that allows doctors to see if your organs are functioning like they should be. This lesson discusses what a PET scan is, why it is used and potential side effects of having this procedure done.

What Is Cachexia? - Definition, Symptoms & Treatment

25. What Is Cachexia? - Definition, Symptoms & Treatment

Another name for cachexia is wasting syndrome. You have to admit, anything called 'wasting syndrome' is bound to be at least a little peculiar. Learn what this condition is, what its symptoms are, and how it can be treated.

What Is Cellulitis? - Definition, Causes, Symptoms & Treatment

26. What Is Cellulitis? - Definition, Causes, Symptoms & Treatment

Cellulitis is a bacterial skin infection that can be serious. Complete this lesson to learn how it develops, what causes it, what the symptoms are, and how to treat it. Then, test your understanding with a brief quiz.

What Is Chemotherapy? - Definition, Types & Side Effects

27. What Is Chemotherapy? - Definition, Types & Side Effects

Do you or someone you know have cancer? If so, you may already be familiar with chemotherapy and its possible side effects. Continue reading to learn more about the different types of chemotherapy.

What Is Computed Tomography (CT Scan)? - Definition, History & Uses

28. What Is Computed Tomography (CT Scan)? - Definition, History & Uses

This lesson will provide you with informative information regarding Computed Tomography (CT). This definition and history are discussed as well as the many uses of a CT machine.

What Is Debridement of a Wound? - Definition, Types & Uses

29. What Is Debridement of a Wound? - Definition, Types & Uses

'Out with the old, and in with the new!' - this is exactly what happens in a common technique used to assist in wound healing known as debridement. Discover more about the fascinating types of debridement available to patients in this lesson.

What Is Dental Plaque? - Definition, Causes & Removal

30. What Is Dental Plaque? - Definition, Causes & Removal

Learn what dental plaque is, how it forms, how it affects your teeth and gums, and how to remove it before it causes tooth decay or oral gum disease. Dental plaque is a soft colorless accumulation of bacteria on teeth, and it can cause serious health problems.

What Is Glaucoma? - Definition, Causes, Symptoms & Treatment

31. What Is Glaucoma? - Definition, Causes, Symptoms & Treatment

Glaucoma is an inherited disease that degrades the vision over time. Let's take a look to learn more about what causes it, as well as what the symptoms and treatment options are.

What Is Hyperthermia? - Definition, Causes & Symptoms & Treatment

32. What Is Hyperthermia? - Definition, Causes & Symptoms & Treatment

Hyperthermia is when the body temperature rises to levels higher than normal. It usually occurs when someone is overexerting themselves in hot weather. Read this lesson to learn more about the causes, symptoms, and how to treat it.

What Is Hypothermia? - Definition, Causes, Symptoms & Treatment

33. What Is Hypothermia? - Definition, Causes, Symptoms & Treatment

You're probably familiar with the term hypothermia, but do you know the specifics? Read this lesson to learn what causes it, what the real symptoms are, and how hypothermia is treated if caught in time.

What Is Hysterosalpingogram? - Procedure, Risks & Side Effects

34. What Is Hysterosalpingogram? - Procedure, Risks & Side Effects

A hysterosalpingogram (HSG) is a diagnostic procedure performed by a doctor. The doctor uses x-ray imaging to exam a women's uterus, fallopian tubes, and pelvic surroundings.

What Is Mastitis? - Causes, Symptoms & Treatment

35. What Is Mastitis? - Causes, Symptoms & Treatment

Mastitis is a very painful condition that mainly affects breastfeeding mothers, usually in the first few months of breastfeeding. Learn more about the causes, symptoms, and treatment of mastitis and test your knowledge with a quiz.

What Is Necrosis? - Definition & Types

36. What Is Necrosis? - Definition & Types

Not everything gets to go through a full life cycle. This is true even in cells. Complete this lesson to learn about a form of cell death called necrosis. We'll outline the six different types, their possible causes, and the resulting tissue changes.

What Is Pyrexia? - Definition, Causes & Symptoms

37. What Is Pyrexia? - Definition, Causes & Symptoms

In this lesson, you will learn about a naturally occurring response from the immune system called pyrexia, which restricts the growth of bacteria and viruses in the body. Afterward, test your knowledge with a quiz.

What Is Sleep Apnea? - Definition, Causes, Symptoms & Treatment

38. What Is Sleep Apnea? - Definition, Causes, Symptoms & Treatment

Sleep apnea is a condition that causes you to wake up repeatedly over the night. When this persists over a long period of time, it can wreak havoc in the rest of your life. Read more to learn about the causes, symptoms, and treatment options.

What Is Tomography? - Definition & History

39. What Is Tomography? - Definition & History

This lesson will define tomography and explain the various techniques used for the process. It will also give a brief overview of the history of the technology.

What Is TURP Surgery? - Definition, Complications & Recovery

40. What Is TURP Surgery? - Definition, Complications & Recovery

A TURP is a surgical procedure performed on the prostate gland. In this lesson, we'll learn about this procedure, the complications associated with it, and the recovery time for the patient.

What Is Ultrasonography? - Definition, History & Uses

41. What Is Ultrasonography? - Definition, History & Uses

Ultrasonography is a diagnostic medical procedure that uses sound waves to produce images on a screen, which allows medical providers to view internal structures of the body. In this lesson, you'll learn more about ultrasonography and its uses.

Zoonosis: Definition & Diseases

42. Zoonosis: Definition & Diseases

A zoonotic disease is one that can be passed between humans and animals. Read this lesson to learn about the many zoonotic diseases out there that you could be passing along or even risk catching!

Basal Cell vs. Squamous Cell Carcinoma

43. Basal Cell vs. Squamous Cell Carcinoma

This lesson is going to explain basal cell carcinoma and squamous cell carcinoma. We will describe some of the similarities and differences that exist between the two as well.

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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