Immune System Overview What causes disease? ► An organism that causes an infection or disease is called a pathogen ► Types of pathogens include virus,

Slides:

Advertisements

Similar presentations

The Immune System.

Advertisements

Lymphatic system and Immunity. Subclavian vein.

The Immune System Pt 2 Acquired Immunity 3 rd Line of Defense B Cells and T Cells Lymphocyte Antibodies Get down with the Sickness.

First line of defense (non-specific barriers) : physical and chemical barriers that prevent pathogens from entering (skin, mucus, acids in the stomach,

The Body’s Defense System

Antibodies Structure and Variability James Hebda 9/30/11.

Vaccinations, white blood cells, antibodies By Alex Hayes.

Immune Response Nonspecific Immune Response Inflammation –Swelling, redness, pain, itching, warmth –Histamines cause the blood vessels to spread open.

Immune System Important system that helps fight off pathogens What is a Pathogen? Microorganism that causes infection or a disease: Bacteria Viruses Fungi.

Immune System The body’s primary defense against disease causing pathogens that threaten our homeostasis. Can be identified by molecules on their outer.

Characteristics of the Specific Immune Response It recognizes and targets “specific” pathogens or foreign substances. It has a “memory,” the capacity to.

How do your body systems protect you from infection and disease?

ELIMINATE ALL VIRUSES? THE GREAT DEBATE. BENEFICIAL USES FOR VIRUSES - Gene therapy – using virus mechanics to aid in changing mutated cells - Cowpox.

By: Diego Mora Eugenio Martin-Carreras. The immune system is a system of biological structures and processes within an organism that protects against.

Anatomy and Physiology

Chapter 19, Section 3 Preventing Infectious Disease Wednesday, April 28, 2010 Pages

The Immune System.

IMMUNE SYSTEM FIGHTING DISEASES. WHAT ARE WE FIGHTING? Some illnesses are caused by a “bug” or germ of some sort. PATHOGEN – fancy word for a germ or.

Immune System. Lines of Defense There are 3 lines of defense in the body. The first 2 are nonspecific (they attack everything); the 3rd is specific (it.

 What is our immune system?  A system that prevents disease and infection  The immune system “cleans the body” by removing what?  Pathogens such as.

Chapter 31 review. 31.1: Pathogens and human illness Germs cause many diseases in humans. There are different types of pathogens. Pathogens can enter.

The Role of Membrane Proteins in… IMMUNITY. What is an antigen? An ANTIGEN is anything that stimulates the production of antibodies by the immune system.

2.5 Cell Wars Text pages The Big ideas Some diseases are caused when cells are invaded by microscopic living things You health depends on how well.

 I I I Important system that helps fight off pathogens   What is a Pathogen? Microorganism that causes infection or a disease: Bacteria Viruses Fungi.

Immune system the system in the body that works to ward off infection and disease.

Human Immunity Objectives: Know the difference between Specific & Non- specific defenses Know how each non-specific defense works Know how the specific.

The Body’s Defenses.

When a foreign microbe infects you for the first time ever, which correctly describes the order of events of an immune response (1) Memory of antigen 

LO: SWBAT explain how our body defends us from pathogens. DN: Quiz: immune #1 HW: Have a great weekend!!! Thursday 1/30- Quiz on immune system.

Aim: How does our body defend us from pathogens?.

Do Now 3/24/15 1.When was the last time you got sick? What did you have? What were your symptoms? 2.Why do people get sick? 3.What happens to your body.

HOW THE IMMUNE SYSTEM FUNCTIONS. Your Mission Describe how our Immune system works at a grade school level using super heroes. For example: Antigen= Joker…he’s.

31.1 KEY CONCEPT Germs cause many diseases in humans.

A. What is Blood? Blood is the tissue of transport in your body Humans have ~ 4-6 liters of blood.

Immune Response Nonspecific Immune Response Inflammation –Swelling, redness, pain, itching, warmth –Histamines cause the blood vessels to spread open.

The job of the immune systems is to fight off pathogens & infections.

Fighting infections viral infection – video link

LO: SWBAT explain how our body defends us from pathogens.

Immune Response.

Aim: How does our body defend us from pathogens?

The job of the immune systems is to fight off pathogens & infections.

Vaccination -Several weeks are required before the immune system develops immunity to a new antigen -To overcome this problem, vaccinations safely give.

Section 31-2 “Immune System”

Many body systems protect you from pathogens.

Steps your body takes to protect you from pathogens

Spiral Notes – Immune System Response

Many body systems protect you from pathogens.

Brief introduction to the immune system

Acquired Immunity.

Immune Response.

Many body systems protect you from pathogens.

Section 3.6 Protecting the body

Many body systems protect you from pathogens.

Many body systems protect you from pathogens.

Pathogens and vectors. Suppose the case of an elder that has been diagnosed with a virus- caused disease called dengue. Who is the pathogen? Who is.

Many body systems protect you from pathogens.

Many body systems protect you from pathogens.

Aim: How does our immune system protect our body?

Many body systems protect you from pathogens.

Activity 2: Bacteria vs. the Immune System

4-2 Introduction to the Immune System Student Power Point

2.5 – Cell wars (defenders)

Immune System Immunity:

Immune System When first exposed to disease, organisms make specific antibodies to mark the foreign invaders so the white blood cells know what to destroy.

Week 15 Vocab Definitions

Phagocytic Leucocytes

Many body systems protect you from pathogens.

Immune System ch. 43.

Presentation transcript:

Immune System Overview

What causes disease? ► An organism that causes an infection or disease is called a pathogen ► Types of pathogens include virus, bacteria, fungus, and protozoa

Pathogen A antigen A ► Pathogens have proteins on their cell membrane, and these proteins have unique shapes. ► These proteins are called antigens.

Pathogen A antibody A antigen A ► The body makes antibodies to fit the shape of these antigens.

Pathogen A antibody A antigen A ► Antibodies are produced by white blood cells. ► WBCs recognize pathogens that you’ve already been exposed to. By remembering them, you won’t get sick from the same pathogen.

Pathogen A White Blood Cell antibody A antigen A ► White blood cells engulf, or eat, pathogens. ► This is called phagocytosis.

Pathogen antibody A Antibody A antibody antigen White Blood Cell

How does your body know that these pathogens are harmful? ► Every organism’s cells have antigens ► Antigens act like name tags ► Antigens have their own unique or specific shape ► This allows your body to recognize things that don’t belong inside you.