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- 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.
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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?
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.
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.
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!
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.
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.
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!
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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!
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.
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.
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.
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