Ch 15: Physiology II - The Nervous, Immune, and Endocrine Systems: Help and Review

About This Chapter

The Physiology II chapter of this College Biology Help and Review course is the simplest way to study the nervous, immune, and endocrine systems. This chapter uses simple and fun videos that are about five minutes long, plus lesson quizzes and a chapter exam to ensure students learn the essentials of physiology.

Who's it for?

Anyone who needs help learning or mastering college biology material will benefit from taking this course. There is no faster or easier way to learn college biology. Among those who would benefit are:

  • Students who have fallen behind in understanding the components and functions of the nervous, immune, and endocrine systems
  • Students who struggle with learning disabilities or learning differences, including autism and ADHD
  • Students who prefer multiple ways of learning science (visual or auditory)
  • Students who have missed class time and need to catch up
  • Students who need an efficient way to learn about physiology
  • Students who struggle to understand their teachers
  • Students who attend schools without extra science learning resources

How it works:

  • Find videos in our course that cover what you need to learn or review.
  • Press play and watch the video lesson.
  • Refer to the video transcripts to reinforce your learning.
  • Test your understanding of each lesson with short quizzes.
  • Verify you're ready by completing the Physiology II 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 Physiology II chapter exam to be prepared.
  • Get Extra Support: Ask our subject-matter experts any physiology question. They're here to help!
  • Study With Flexibility: Watch videos on any web-ready device.

Students will review:

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

  • What is homeostasis?
  • What are the symptoms of diabetes?
  • How do the central and peripheral nervous systems work?
  • How do the sympathetic and parasympathetic nervous systems work?
  • What are the parts of the brain and their functions?
  • What is the difference between Innate and acquired immunity?
  • How do antibiotics and vaccines work?
  • How do individual viruses evade the human immune system?
  • Why do some people become resistant to antibiotics?

23 Lessons in Chapter 15: Physiology II - The Nervous, Immune, and Endocrine Systems: Help and Review
Test your knowledge with a 30-question chapter practice test
Homeostasis and Temperature Regulation in Humans

1. Homeostasis and Temperature Regulation in Humans

Do you wonder how your body is able to maintain a consistent temperature? Have you ever questioned why you get goosebumps when you're cold? This lesson will introduce you to homeostasis and answer your questions about body temperature regulation and reactions, like goosebumps.

Homeostasis of Glucose Levels: Hormonal Control and Diabetes

2. Homeostasis of Glucose Levels: Hormonal Control and Diabetes

In this lesson, we'll look at how the body uses hormones to maintain homeostasis of blood glucose levels, what happens in people who have diabetes, and how diabetics can manage their disease.

Functions of the Nervous System

3. Functions of the Nervous System

In this lesson, we'll watch Timmy as he plays in his backyard. Watch what happens when he tries to catch a butterfly, hears a mean dog bark, and scrapes his knee. All of Timmy's reactions are tied to his nervous system. For a full explanation of what goes on in the human nervous system, check out the video!

The Structure and Function of Neurons

4. The Structure and Function of Neurons

In this video lesson, you'll learn about neurons, which are specialized cells in the nervous system. Check out how far neurons can send signals throughout the body and how depolarization is much like 'the wave' at a football game.

The Central and Peripheral Nervous Systems

5. The Central and Peripheral Nervous Systems

Did you know that hammerhead sharks and platypuses share a special type of sensory neuron that humans and most other animals don't have? In this lesson, you'll find out what that sensory neuron and a whole lot of others can do. You'll also learn how the nervous system is organized and the differences between the central and peripheral nervous systems.

The Sympathetic and Parasympathetic Nervous Systems

6. The Sympathetic and Parasympathetic Nervous Systems

In this lesson, you'll learn about two subdivisions of the autonomic nervous system - the sympathetic and parasympathetic nervous systems. Watch as a hiker, Phil, runs away from a terrifying bear and see how these systems react to the impending danger!

Brain Structures and Functions Part I

7. Brain Structures and Functions Part I

The brain's complexity can often be difficult to understand because it serves so many important functions. In this lesson, you'll get a little help from Nrr, the alien biologist, who will guide you through understanding the structure and functions of the human brain.

The Cerebral Cortex: Brain Structures and Functions Part II

8. The Cerebral Cortex: Brain Structures and Functions Part II

Check out this video lesson to learn about the four lobes of the human brain - the frontal, parietal, occipital and temporal. You'll learn about the functions and processes of each region.

Innate Immunity: Inflammation, Neutrophils & Natural Killer Cells

9. Innate Immunity: Inflammation, Neutrophils & Natural Killer Cells

You might already know how your body handles known infectious agents but how about unknown? Watch this video to explore your innate immune system - your body's defense against new bacteria and viruses.

Acquired Immunity: T Cells, B Cells and Antibodies

10. Acquired Immunity: T Cells, B Cells and Antibodies

Have you ever wondered why some people don't ever seem to get sick? These people likely have an acquired immunity. Learn more about the immune system and how exposure to an illness one time can help your body to prevent that illness from ever occurring again.

Antibiotics and Vaccines

11. 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.

Flu Viruses, HIV and Immune System Evasion

12. Flu Viruses, HIV and Immune System Evasion

Why is it that our immune systems can protect us from some viruses but not others? We've eradicated smallpox by using vaccines, so why do influenza and HIV remain such dangerous health risks? In this lesson about viruses, we'll explore these questions and learn how influenza and HIV continue to evade the human immune system.

Pathogens: Antibiotic Resistance and Virulence

13. 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.

Afferent Division of the Peripheral Nervous System

14. Afferent Division of the Peripheral Nervous System

In this lesson, we'll explore what the nervous system is, what the peripheral nervous system is, and then we will discuss the types of afferent divisions that exist within the peripheral nervous system.

Lens of the Eye: Definition & Function

15. Lens of the Eye: Definition & Function

The lens of the eye focuses light and allows you to see. In this lesson, you will learn what the lens is made of and how it changes shape so that you can have clear vision.

Neurobiology: Definition & Concept

16. Neurobiology: Definition & Concept

Neurobiology is a branch of biology that focuses on the structure and function of the nervous system in animals and humans. It is an important field, and one that has proven to be critical for the understanding of animal and human physiology.

Parietal Lobe: Definition & Functions

17. Parietal Lobe: Definition & Functions

The brain is composed of many parts and several lobes. In this lesson, you will learn about the structure and function of the parietal lobe of the human brain.

Retrovirus: Definition, Life Cycle & Example

18. Retrovirus: Definition, Life Cycle & Example

This lesson will discuss retrovirus infection, survival, and reproduction. First we'll discuss how a regular virus works, then how a retrovirus differs, usingl HIV as an example.

Temporal Lobe: Definition & Functions

19. Temporal Lobe: Definition & Functions

The brain is divided into several lobes. Each lobe is characterized by the specific functions it does as well as its location and boundaries. In this lesson, you will learn about the temporal lobe and its functions.

What is a Neural Tube? - Definition, Development & Disorders

20. What is a Neural Tube? - Definition, Development & Disorders

A neural tube is found in developing vertebrate embryos. Read this lesson to learn what it is, when you had one, what happened to it, and what happens if it doesn't develop correctly!

What is Virulence?

21. What is Virulence?

Virulence factors contribute to a pathogen's virulence, or ability to cause disease. This lesson will describe some of the different virulence factors and will use different HIV strains to demonstrate varying levels of virulence.

Cholinergic Urticaria: Definition, Symptoms & Treatment

22. Cholinergic Urticaria: Definition, Symptoms & Treatment

Feeling hot and bothered? Well, some people break out into an itchy rash when feeling this way! Come find out more about cholinergic urticaria - its symptoms and treatments - in this lesson.

Maintaining Homeostasis: Importance & Examples

23. Maintaining Homeostasis: Importance & Examples

Have you ever heard of the term 'homeostasis'? In this lesson you will learn the definition of homeostasis and discover why maintaining it is so important to the life of any organism.

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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