Immune system .. Fort body

The immune system is a system that protects the body from harmful internal and external environmental effects such as bacteria, viruses and malignant cells. And know here the most important components and diseases, and how to maintain its integrity?

...What is the immune system?...

.Members: such as bone marrow, lymph nodes, some parts of the spleen, gastrointestinal tract, thymus gland and tonsils.
.Cells: such as lymphocytes, basal, acidic and neutral cells, and monocytes that can differentiate into phagocytic cells (swallowing and digesting alien objects from the body) and normal killer cells.
.Proteins, such as antibodies.

...How does the immune system work?...

.Equation of alien cells that enter and eliminate the body, such as viruses, bacteria and fungus.
.Detect toxins and harmful substances from the environment that enter the body.
.Fight the same body cells that have changed as a result of illness, such as cancer cells.

...What diseases fall under the diseases of the immune system?...

..Immunology is divided into three groups:

.First: Allergy and asthma, caused by an abnormal reaction of the immune system to non-harmful substances, such as peanuts and pollen.
.Second, autoimmune diseases occur when the immune system attacks the cells of the body, such as multiple sclerosis, type 1 diabetes, rheumatoid arthritis and systemic lupus erythematosus.
.Third: Immunodeficiency Diseases

...How do we detect immune diseases?...

.Genetic immunodeficiency diseases, as well as allergies and asthma, are diseases that a person gets out of control. He or she is required to follow the doctor's instructions if diagnosed, and to take care of medications and avoid allergies or asthma attacks.