What Are The First Two Categories Of Innate Defense

The immune system depends on the body’s structures to help it function. For instance, the skin acts as the “body’s first line of defense.” If a pathogen finds a breach in the skin barrier, it is the circulatory system that must now signal the immune system of the invader. Shortly after, white blood cells will be notified of the infection and will target and destroy the pathogen.

One defence mechanism of the human body is that when a person gets ill or is infected the person will get a fever, this is a method of notifying the person. This is a bodily defence mechanism produced by the immune system, its main purpose is to make it difficult for the virus to multiply prepare for the virus. The body’s pH level will also change to make it less optimal for the virus. The immune system’s mechanism will change depending on the body’s condition. If the body gets cut the immune system will causes inflammation, this will cause red blood cells to come to the

Innate immunity refers to nonspecific defense mechanisms that come into play immediately or within hours of an antigen's appearance in the body. Adaptive immunity refers to antigen-specific immune response.

The body’s protection against viruses, bacteria and other types of invasions is our immune system (Tortora, 2014).

The innate and adaptive immune response start with exposure to an antigen in the epithelium of

Innate Immune System – Nonspecific and abrupt first response; comprised of epithelial surfaces (physical barriers), neutrophils, and macrophages.

Adaptive immunity (p.446): The body’s ability to recognize and defend itself against distinct invaders and their products.

Acquired immunity is a type of immunity also known as the third line of defence, it is the immunity produced when the human body has been infected by an antigen which triggers the production of antibodies. There are two types of acquired immunity which are active and passive acquired immunity.

When this occurs, the body’s defence mechanisms are activated; seeing as the infection is already in the body, 3rd line defence mechanisms come into play. The 3rd line of defence is a specific resistance which forms an immune response and targets specific

There are two parts in the immune system that help the body from being invaded or infected: innate immunity and the adaptive immunity. The innate immunity is the initial response to invaders and consists of defense mechanism: surface barriers and the internal defense. The first defense mechanism in the innate immunity is the body surface barriers, such as the skin and the mucous membrane. The surface barriers serve as mechanical, physical and chemical barriers. Mechanical barriers are consisted of your mucosa lining in the stomach. This lining has enzymes like: 1) amylase, breaks down starch into smaller carbohydrates; 2) protease, breaks down proteins into amino acids; 3) lipase, breaks down fats into fatty acids and glycerol; and 4) other enzymes are the cells that

The body has two immune systems: the innate immune system and the adaptive immune system.

The world is full of bacteria and germs that is a fact. One of the many jobs our body has it to protect us from harmful pathogens which is when our natural defense mechanisms kick in. Do we know what these natural defense mechanisms are? Our body has an immune system and barriers that play a part in preventing and/or battling the diseases attacking our body. Is there a difference between the normal functions of the body and the response it triggers that provokes a defense reaction?

The immune system is comprised of two responses: the adaptive immune response and the innate immune response. The first line of defence against invading organisms is classified as the innate immune response and the second line of defence and protection against re- exposure to the same pathogen is known as the adaptive immune response.

Have you ever wondered how your body works? Did you ever think about how your body defends itself from outside invaders? Remember the last time you were sick. Did you know how your body fought and killed the sickness? All these questions can be answered by learning about one of the most important systems in your body, the immune system.

Our immune system is made up of two parts that work together to keep us healthy. The first part is called the innate immune system, it is made up mostly of ‘scavenger’ and ‘killer’ cells that fight off bacterial infections and give the body a general defense against harmful substances. The second part of the immune system is called the adaptive immune system. This part