Immune+System

= Immune System =

Overview
Immune system consists of cells, organs and molecules in the body to help fight infections (Nowicky) [Andy]

• Your skin blocks pathogens from getting into the body. The skin has sweat and oil  glands that make its surface difficult for pathogens to grow on (Nowicky) [Andy] .

 • Mucus membranes in your nose, mouth, and ears contain sticky substances that  trap pathogens (Nowicky) [Andy] .

 • If a pathogen does get into the body, the circulatory system helps fight the infection  by transporting the immune system’s specialized cells (Nowicky) [Andy] .

Immune system has the function to det ect and destroy the infections. The infections can be things that cause diseases, do harm to the body like //pathogens// and unknown cells. And those things will make the internal environment in the body becomes unstable or be infected. In the other way of saying, it will cause damage to the homeostasis. The //white blood cells// are the specialized cells of the immune system; they have ability to tell pathogens from body cells because of the protein markers called //antigens// on the surface of the pathogens. On the other hand transplanted tissues, organs have different protein markers from other body cells so white blood cells will attack those transplanted organs, tissues (Nowicky) [Bao].

You Want More Information? Go HERE! (Andy Tran).

Function
Immune system has the function to detect and destroy the infections. The infections can be things that cause diseases, do harm to the body like //pathogens// and unknown cells. And those things will make the internal environment in the body becomes unstable or be infected. In the other way of saying, it will cause damage to the homeostasis. The //white blood cells// are the specialized cells of the immune system; they have ability to tell pathogens from body cells because of the protein markers called //antigens// on the surface of the pathogens. On the other hand transplanted tissues, organs have different protein markers from other body cells so white blood cells will attack those transplanted organs, tissues (Nowicky) [Bao]. ==// Pathogen // is microbe such as bacteria, fungus, virus or prion that cause the disease to organisms or plants. ( Nowicky) [Luan] == ==// Immune system // is a system in body that fights off the inflections and pathogens. The immune system has many different responses to pathogens and strength cells ( Nowicky) [Luan]. ==

See more about Immune system functions at [|here]. (Luan)

During //inflammation//, blood vessels become leaky à white blood cells move to inflection and damage tissues. The inflammation characterized by swelling, redness, and pain. ( Nowicky) [Luan] During //fever//, body temperature increase. High fever can cause seizure, brain damage and even death <span style="font-family: Calibri,sans-serif; font-size: 16px; font-weight: normal; line-height: 27px;">( Nowicky) [Luan].

<span style="font-family: Calibri,sans-serif; font-size: 12pt;"> There are two specific immune responses <span style="font-family: Calibri,sans-serif; font-size: 12pt; margin-left: 0in; text-indent: 0.5in;">In addition, both T and B cells produce memory cells. ( Nowicky) [Luan]
 * <span style="font-family: Calibri,sans-serif; font-size: 12pt;">// Hormonal immunes // use B cell to produce antibodies ( Nowicky) [Luan]
 * <span style="font-family: Calibri,sans-serif; font-size: 12pt;">// Cellular immunity //uses T cells to destroy infected body cells. ( Nowicky) [Luan]

==== More specific information about how T cells and B cells function. CLICK HERE.and [|HERE]. Bao Vu ====

<span style="font-family: Calibri,sans-serif; font-size: 12pt;">// Antibodies // are an Y shaped protein used by immune system to protect body from virus or bacteria. ( Nowicky) [Luan]

<span style="font-family: Calibri,sans-serif; font-size: 12pt;">See how the Immune System works: How Immune System Works. Bao

<span style="font-family: Calibri,sans-serif; font-size: 12pt;">The body have difficult to defend against HIV (human immunodeficiency virus) - a retrovirus- because HIV attacks and weakens immune system. HIV is transmitted by mixing infected blood with a bodily fluid. ( Nowicky) [Luan]

<span style="font-family: Calibri,sans-serif; font-size: 12pt;">To make the body fight against diseases, people injected //vaccines// into their body, which contain a part of harmless germs, so that //antibodies,// protective substances of the white blood cells in their bodies, can kill off the germs in the vaccines. And then their bodies become protected from those diseases (Nowicky) [Bao]

<span style="font-family: Calibri,sans-serif; font-size: 12pt;">See how Vaccines Work: Vaccination Bao