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Immune System

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Immune System

Explore the basics about the immune system with The Amoeba Sisters! This video talks about the three lines of defense and also compares cell-mediated response with the humoral response.

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Factual References:

Clark, M. A., Douglas, M., & Choi, J. (2018). Biology 2e. Houston, TX: Biology Stax.

Reece, J. B., & Campbell, N. A. (2011). Campbell biology. Boston: Benjamin Cummings / Pearson.

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Further Reading Suggestions:

Discover many other types of white blood cells here!

More about antibody classes?

More detail about the cell-mediated and humoral response?
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The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching biology at the high school level. Amoeba Sisters videos only cover concepts that Pinky is certified to teach, and they focus on her specialty: secondary life science. Learn more about our videos here:

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The Immune System

This video describes the Immune System and explains how it detects and attacks any foreign organism that enters the body.

We learn how the team in the MRC Centre for Transplantation at King’s College London have developed a way to harness the power of the Immune System after a transplant, whilst maintaining the body’s capacity to resist infectious diseases.

Produced by Figment Productions.
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The Immune System Explained I – Bacteria Infection

Every second of your life you are under attack. Bacteria, viruses, spores and more living stuff wants to enter your body and use its resources for itself. The immune system is a powerful army of cells that fights like a T-Rex on speed and sacrifices itself for your survival. Without it you would die in no time. This sounds simple but the reality is complex, beautiful and just awesome. An animation of the immune system.


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somersault18:24

Why you are still alive - The immune system explained

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How does your immune system work? - Emma Bryce

Explore how your immune system’s vast network of cells, tissues, and organs coordinate your body’s defenses against bacteria, viruses and toxins.

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The immune system is a vast network of cells, tissues, and organs that coordinate your body’s defenses against any threats to your health. Without it, you’d be exposed to billions of bacteria, viruses, and toxins that could make something as minor as a paper cut or a seasonal cold fatal. So how does it work? Emma Bryce takes you inside the body to find out.

Lesson by Emma Bryce, animation by Cabong Studios.

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Thank you so much to our patrons for your support! Without you this video would not be possible! Antero Semi, Yanuar Ashari, Mrinalini, Anthony Kudolo, Scott Gass, Querida Owens, David Lucsanyi, Hazel Lam, Jhiya Brooks, Manav parmar, Dwight Tevuk, Stephen A. Wilson, Siamak H, Dominik Kugelmann, Michel Reyes, Katie Winchester, Mary Sawyer, Ryan Mehendale, David Rosario, Samuel Doerle, Be Owusu, Susan Herder, Savannah Scheelings, Prasanth Mathialagan, Yanira Santamaria, Chad Harper, Dawn Jordan, Chris Mathew, Constantin Salagor, Activated Classroom Teaching, Kevin Wong, Umar Farooq, Goh Xiang Ting Diana, Dmitry Neverov, Tushar Sharma, Cristóbal Medina Moenne.
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Immune System, Part 1: Crash Course A&P #45

Our final episodes of Anatomy & Physiology explore the way your body keeps all that complex, intricate stuff alive and healthy -- your immune system. The immune system’s responses begin with physical barriers like skin and mucous membranes, and when they’re not enough, there are phagocytes -- the neutrophils and macrophages. It also features the awesomely named natural killer cells and the inflammatory response, and we'll explain how all of these elements work together to save the day if you happen to slip on a banana peel.

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Table of Contents
Physical Barriers Like Skin and Mucous Membranes 2:01
Phagocytes: Neutrophils and Macrophages 3:17
Natural Killer Cells 4:29
Inflammatory Response 5:29

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Introduction to the immune system

What is the immune system? The immune system is made up of organs, tissues, cells, and molecules that all work together to generate an immune response that protects us from microorganisms, removes toxins, and destroys tumor cells.

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Medical disclaimer: Knowledge Diffusion Inc (DBA Osmosis) does not provide medical advice. Osmosis and the content available on Osmosis's properties (Osmosis.org, YouTube, and other channels) do not provide a diagnosis or other recommendation for treatment and are not a substitute for the professional judgment of a healthcare professional in diagnosis and treatment of any person or animal. The determination of the need for medical services and the types of healthcare to be provided to a patient are decisions that should be made only by a physician or other licensed health care provider. Always seek the advice of a physician or other qualified healthcare provider with any questions you have regarding a medical condition.

IMMUNE SYSTEM MADE EASY- IMMUNOLOGY INNATE AND ADAPTIVE IMMUNITY SIMPLE ANIMATION

The immune system is the basic defence system of the body that protects us from harmful pathogens and diseases.

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The immune system consists of various types of cells and different proteins that kill the harmful invading micro-organisms and protect our body from disease.
In this video we will discuss about the human immune system. What is the basic structure of the Human Immune system and how it functions

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Pathogens can rapidly evolve and adapt, and thereby avoid detection and neutralization by the immune system; however, multiple defense mechanisms have also evolved to recognize and neutralize pathogens. Even simple unicellular organisms such as bacteria possess a rudimentary immune system in the form of enzymes that protect against bacteriophage infections. Other basic immune mechanisms evolved in ancient eukaryotes and remain in their modern descendants, such as plants and invertebrates. These mechanisms include phagocytosis, antimicrobial peptides called defensins, and the complement system. Jawed vertebrates, including humans, have even more sophisticated defense mechanisms,[1including the ability to adapt over time to recognize specific pathogens more efficiently. Adaptive (or acquired) immunity creates immunological memory after an initial response to a specific pathogen, leading to an enhanced response to subsequent encounters with that same pathogen. This process of acquired immunity is the basis of vaccination.

The immune system protects organisms from infection with layered defenses of increasing specificity. In simple terms, physical barriers prevent pathogens such as bacteria and viruses from entering the organism. If a pathogen breaches these barriers, the innate immune system provides an immediate, but non-specific response. Innate immune systems are found in all plants and animals. If pathogens successfully evade the innate response, vertebrates possess a second layer of protection, the adaptive immune system, which is activated by the innate response. Here, the immune system adapts its response during an infection to improve its recognition of the pathogen. This improved response is then retained after the pathogen has been eliminated, in the form of an immunological memory, and allows the adaptive immune system to mount faster and stronger attacks each time this pathogen is encountered.
The complement system is a biochemical cascade that attacks the surfaces of foreign cells. It contains over 20 different proteins and is named for its ability to complement the killing of pathogens by antibodies. Complement is the major humoral component of the innate immune response. Many species have complement systems, including non-mammals like plants, fish, and some invertebrates.[33]

In humans, this response is activated by complement binding to antibodies that have attached to these microbes or the binding of complement proteins to carbohydrates on the surfaces of microbes. This recognition signal triggers a rapid killing response.[55] The speed of the response is a result of signal amplification that occurs after sequential proteolytic activation of complement molecules, which are also proteases. After complement proteins initially bind to the microbe, they activate their protease activity, which in turn activates other complement proteases, and so on. This produces a catalytic cascade that amplifies the initial signal by controlled positive feedback.[56] The cascade results in the production of peptides that attract immune cells, increase vascular permeability, and opsonize (coat) the surface of a pathogen, marking it for destruction. This deposition of complement can also kill cells directly by disrupting their plasma membrane

The Immune System

Paul Andersen explains how your body protects itself from invading viruses and bacteria. He starts by describing the nonspecific immune responses of skin and inflammation. He then explains how we use antibodies to disrupt the function of antigens and mark them for destruction. He then explains both the homoral and cell-mediated immune response highlighting the importance of B and T lymphocytes. He finally describes the process of long term immunity.

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Immune System, Part 3: Crash Course A&P #47

THE FINAL SHOWDOWN! This is the last episode on the immune system and also the very last episode of Crash Course Anatomy & Physiology. In it, Hank explains how the cellular immune response uses helper, cytotoxic, and regulatory T cells to attack body cells compromised by pathogens. He also explores how cytokines activate B and T cells, and what happens if your immune system goes rogue and starts causing autoimmune trouble.

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Table of Contents
Helper, Cytotoxic and Regulatory T Cells Attack Compromised Body Cells 4:08
Cytokines Activate B and T Cells 5:00
When Your Immune System Goes Rogue 6:15
Autoimmune Trouble 7:27

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Immune System: Innate and Adaptive Immunity Explained

The immune system (or immunity) can be divided into two types - innate and adaptive immunity. This video has an immune system animation. The innate immune system consists of defenses against infection that are activated instantly as a pathogen attacks. Adaptive immunity (or acquired immunity) is a subsystem of the immune system that contains highly specialised systemic cells and processes that kill pathogens and prevent their growth in the body. Innate vs adaptive immunity: it’s important to realize that innate and adaptive immunity are different. Their differences are explained in the video in layman terms.

Our immune system is a fascinating entity, that functions in quite a unique and efficient manner. Comprising of various types of cells, it is prepared for any kind of breach in the fortress of our body, and is equipped to fight off a staggering number of intruders.
In this video, we give you a brief overview of the immune system, and the basic types of cells involved, along with the function they carry out.

Each cell if the immune system carries out various roles, depending on the kind of threat the body is facing. However, they have certain basic roles which have been explained here.


#science #animation #immunesystem



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TOP 5 VITAMINS TO BOOST IMMUNITY - How to strengthen IMMUNE SYSTEM

TOP 5 VITAMINS TO BOOST IMMUNITY - How to strengthen IMMUNE SYSTEM.

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If you fall sick very often or frequently suffer from flu, sore throat and skin infections, it’s possible your body needs vitamins to boost the immune system. The best way to increase your vitamin intake is by having a healthy and balanced diet, but sometimes our bodies need an extra boost.
Most of the time, the immune system does its job to keep us healthy. However if the system sometimes fails to defend us, it can result in illness, infection, or diseases. This is where the body needs reinforcements in the form of vitamins and other immune-boosting nutrients.
In this video we will look at the Top 5 important vitamins that you need to include in your diet to boost your immune system and fight off infections.

Immune System, Part 2: Crash Course A&P #46

In the penultimate episode of Crash Course Anatomy & Physiology, Hank explains your adaptive immune system. The adaptive immune system's humoral response guards extracellular terrain against pathogens. Hank also explains B cells, antibodies, and how vaccines work.

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Table of Contents
Adaptive Immune System's Humoral Response 1:19
How B Cells Mature, Identify Antigens, and Make Antibodies 2:42
How Antibodies Warm Pathogens and Mark Them for Death 5:22
Active and Passive Humoral Immunity 6:03
How Vaccines Work 6:27

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How Your Immune System Works

When you get sick, your immune system comes to the rescue. Find out more in this movie for kids.

Your Immune System: Natural Born Killer - Crash Course Biology #32

Hank tells us about the team of deadly ninja assassins that is tasked with protecting our bodies from all the bad guys that want to kill us - also known as our immune system.

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Table of Contents
1) Innate Immune System 1:45
a) Mucous Membranes 2:54
b) Inflammatory Response 3:44
c) Leukocytes 4:45

2) Open Letter 6:33
a) Natural Killer Cells 6:56
b) Dendritic Cells 7:57

3) Acquired Immune System 8:36
a) Antibodies 9:08
b) Lymphocytes 9:48
c) Cell-Mediated Response 10:17
d) Humoral Response 13:00

References
Campbell Biology, 9th ed.



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crash course, crashcourse, biology, immune system, anatomy, physiology, human, health, microscopic, pus, pathogen, bacteria, body, organism, virus, immunity, innate, acquired, animal, vertebrate, germ, skin, mucous membrane, digestive tract, mucus, inflammatory response, mast cells, histamine, allergic, allergy, infection, phagocyte, macrophage, natural killer cell, lymphocytes, white blood cells, antigen, t cell, humoral response Support CrashCourse on Patreon:

How COVID-19 Turns Your Immune System Against You

Learn more about the Yale School of Medicine's response to COVID-19, visit:

Dr. Akiko Iwasaki is an Investigator of the HHMI and Waldemar Von Zedtwitz Professor of Department of Immunobiology, and of Department of Molecular Cellular and Developmental Biology. Her laboratory is actively engaged in both surveillance and research efforts to understand viral prevalence and in studying the immune response that leads to protective versus pathologic consequences of COVID-19.

Faculty across Yale, including at the School of Medicine, School of Nursing, School of Public Health, School of Engineering & Applied Science and Faculty of Arts and Sciences are actively engaged in research, innovation, and clinical efforts to combat COVID-19.

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HOW MENTAL STRESS ON IMMUNITY- Effect of stress on immune system.

HOW STRESS AFFECTS YOUR IMMUNITY AND HOW IT MAKES YOU SICK.


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Stress is a feeling of emotional or physical strain and pressure.
Stress can be positive or negative.
Positive stress is beneficial and healthy.
It helps in improving performance, motivation and adaptation.
Negative stress is a Pandora’s box full of problems
It decreases performance, demotivates the individual and leads to
mental and physical problems.

EFFECT OF EXERCISE ON OUR IMMUNE SYSTEM- Can Exercise Boost Immunity

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Physical exercise has numerous effects on the human body, including the immune system. Which was quoted by Mathew et. Al in the study they did to check the effects of exercise on immunity. It is well known that mild to moderate exercise helps to boost the overall immune system and activity of key white blood cells.

Although exercise immunology is considered a relatively new area of scientific discovery with 90% of papers published after 1990, some of the earliest studies were published well over a century ago. For example, in 1902, Larra bee provided evidence that changes in white blood cell differential counts in Boston marathon runners paralleled those seen in certain diseased conditions. He also observed that “the exertion had gone far beyond physiological limits and our results certainly show that where this is the case, we may get a considerable leukocytosis of the inflammatory type.”
Which basically meant that prolonged strenuous running in marathon runners lead to a decreased function of white blood cells.
Watch the video to know more.

Immune Response to Bacteria

This animation shows how the body naturally responds to and destroys invading bacteria.

Understanding the Immune System in One Video

This video provides a visual overview of the immune system.

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Foods to Boost Your Immune System

Learn about the kinds of foods that can boost your immune system, lessen inflammation in the body and optimize nutritional gains. Gain strategies for eating well despite diet specific challenges and get your questions answered about eating well to live well.

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