A complex system that is responsible for distinguishing a person from everything foreign to him or her and for protecting his or her body against infections and foreign substances.

A complex network of cells, tissues, organs, and the substances they make that helps the body fight infections and other diseases. The immune system includes white blood cells and organs and tissues o [..]

The body's means of protection against microorganisms and other foreign substances; it is composed of two major parts: the humoral response (B lymphocytes and production of antibodies) and the cell-mediated response (T lymphocytes that attack foreign substances directly). 

The body's complicated natural defense against disruption caused by invading foreign agents (eg bacteria, viruses). Acquired, or learned, immune response arises when specialized cells (dendritic [..]

The body’s natural protection against infection and disease.

network of chemicals and organs that protects the body from disease.

A network of special organs and cells which function together, defending the body from being attacked by viruses and bacteria.

The immune system is a complex and multifaceted combination of body systems that guards against disease processes and protects the body against infection. These systems detect various pathogens (such [..]

A system of the body through which it fights the effects of deleterious agents like pathogenic microorganisms and protects itself from diseases.

The complex, highly evolved defense forces of the BioCosmos

The complex group of organs and cells that defends the body against infections and other diseases.

This helps a living thing defend itself against infectious organisms and other foreign substances. In mammals, it includes the non-specific (innate) immune system and the specific (adaptive) immune sy [..]

A complex system that is responsible for distinguishing us from everything foreign to us, and for protecting us against infections and foreign substances. The immune system works to seek and kill inva [..]

A network of molecules, cells and organs that work together to protect the body against infection and disease.

human body’s network of cells and organs that produce disease-fighting antibodies.

The immune system is made up of special cells, proteins and organs that combine to create the body’s defence against infectious disease. Through something called the immune response, invading organisms are attacked so that the body can protect itself.

a complex system in the body that recognizes and responds to potentially harmful substances, like infections, in order to protect the body.

the parts of the body that fight diseases, infections, and viruses

(ih-MYOON) the body's system for protecting itself from viruses and bacteria or any "foreign" substances.

The human immune system is a complicated organization of cells and pathways within the body that seeks and responds to foreign invaders such as bacteria, viruses, and other infectious agents — as well [..]

The complex system by which the body resists infection by microbes (such as bacteria or viruses) and rejects transplanted tissues or organs. The immune system may also help the body fight some cancers [..]

The way the body defends itself against infection, disease and outside substances.

The system within the body that recognizes and fights foreign cells and disease.

The body’s defence against infection, disease and foreign substances

The body's internal defense system which defends you from dangers such as infections, cancer, etc. Normal healing is coordinated with the immune system. Occasionally abnormal immunity can cause p [..]

the body’s defence system. This is made up of different types of tissues and cells that protect the body against infectious or other harmful organisms which may cause disease. It responds by recognising and attacking antigens. Immunology is the study of the body's immune system.

Definition: (im-YOON) The complex group of organs and cells that defends the body against infection or disease. Researchers are interested in why the immune system does not recognize cancer as a disea [..]

This body system, which includes white blood cells and lymph nodes, helps protect your body from disease. The immune system has different parts, all of which work together to fight off outside invader [..]

The immune system is responsible for the protection of the body against infection. It is divided into two parts: the innate immune system and the acquired immune system.

The body's defense mechanism against foreign organisms or substances and deviant native Cells. It includes the humoral immune response and the Cell-mediated response and consists of a complex of [..]

The alternative patterns of systemic response deployed by Plants in situ to fend off pathogens.

A complex network of specialized cells, tissues, and organs that recognize and defend the body from foreign substances, primarily disease-causing microorganisms such as bacteria, viruses, parasites, and fungi. Organs and tissues of the immune system include the bone marrow, spleen, thymus, and tonsils. Granulocytes, macrophages, and T lymphocytes a [..]

The body's defense mechanism against foreign organisms or substances and deviant native cells. It includes the humoral immune response and the cell-mediated response and consists of a complex of [..]

The system within an animal that recognizes an infectious agent or other foreign “invader” and mounts an immune response. The immune system includes various organs, such as the thymus gland, spleen, a [..]

The body's defense system which recognizes infectious agents and other 'foreign' compounds (such as pollen), and works to destroy them.

A complex system of organs and processes in the body responsible for fighting disease. Its primary function is to identify foreign substances in the body (including bacteria, viruses, fungi, parasites [..]

The complex system that is the body’s natural defense against infection and disease. It may help the body fight some cancers.

The collection of organs, cells, and molecules that make up an organism’s response to a disease threat or foreign substance.

The body’s very complex system (made of many organs and cells), which defends the body against infection, disease, and foreign substances.

the complex system (network of specialized cells and organs) in the body responsible for fighting disease. Its primary function is to identify foreign substances in the body (bacteria, viruses, fungi, [..]

The body's system for fighting infectious disease.

[imm-yoon sis-tum] The immune system is your body's defence system, which helps protect it from disease, bacteria and viruses.

The body’s very complex system (made of many organs and cells), which defends the body against infection, disease, and foreign substances.[2]

The cells, tissues and organs that help the body to resist infection and disease by producing antibodies and/or altered cells that inhibit the multiplication of the infectious agent. [6]

The complex system in the body responsible for fighting disease. Its primary function is to identify foreign substances in the body (bacteria, viruses, fungi or parasites) and develop a defense agains [..]

the body system, made up of many organs and cells, that defends the body against infection, disease, and foreign substances.

protects the body from potentially harmful substances by recognizing and responding to antigens

A collection of mechanisms within an organism that protects against disease by identifying and killing pathogens and tumor cells.

The body’s very complex system (made of many organs and cells), which defends the body against infection, disease, and foreign substances

The complex system in the body responsible for fighting disease. Its primary function is to identify foreign substances in the body (bacteria, viruses, fungi and parasites) and develop a defense, or immune response, against them. It involves production of protein molecules called antibodies to eliminate foreign organisms that invade the body.

(ih-MYOON SIS-tuh m): The body’s natural defense system that protects it from bacteria, viruses, parasites, and other organisms that can cause harm. The immune system identifies these foreign invaders and produces protein molecules called antibodies to fight them. This is called the immune response.

the system in the body that helps to prevent and fight off infection; all the cells, tissues, and organs involved in the immune response

All the organs, cells, biological substances and cell functions which, together, are responsible for defending the body from extraneous elements.

The complex system in the body responsible for fighting disease. Its primary function is to identify foreign substances in the body (bacteria, viruses, fungi or parasites) and develop a defense agains [..]

A group of cells inside the body that all work together to keep a person healthy by killing germs. These cells can tell the difference between the cells that are part of the body and those things that [..]

The arsenal used by the body to defend against foreign bodies including infecting organisms. The immune system includes an array of specialized cells (granulocytes, lymphocytes, mononuclear leukocytes [..]

A complex network of cells and organs that defends the body against attacks by ‘foreign’ invaders, like infection. It recognises the difference between normal cells and cancer cells and ‘fights’ cance [..]

The human immune system is a complex system of cells, processes and biological structures that protects the body from pathogenic microorganisms. The mucosal lining of the gut, which is maintained by probiotics, plays an important part in this system and is considered the front line against disease.

It is generally known as the body’s defence system against infectious organisms and other invaders. It is made up of a network of cells, tissues and specialized organs that communicate with each other and act thru a cascade of biological reactions that involves mainly cytokines. The aim of this immune response is the destruction and elimination of [..]

This is how the body defends itself from infections and involves the white blood cells.

 A system in the body that fights infections and causes allergic reactions; consists of white blood cells, the spleen and the lymph nodes

The cells, proteins (such as antibodies) and cellular activities that work together to fight off infection and provide resistance to subsequent infection.

The body’s defense mechanism against foreign organisms or substances and deviant native cells. It includes the humoral immune response and the cell-mediated response and consists of a complex of interrelated cellular, molecular, and genetic components. (Definition from: MeSH via Unified Medical Language System

a collection of organs, cells and tissues that work together to protect your body from disease caused mostly by pathogens (bacteria, viruses, parasites and fungi).

a complex group of cells, proteins, and other molecules that work together to identify foreign organisms and substances, such as bacteria; the main role of the system is to protect the body against these foreign organisms

[ih-myoon] [sis-tuh m] The body’s defense system against getting an infection and disease. White blood cells are the main part of your immune system that fight infections.

The body’s defence against disease. It is a complex cascade of cell responses, which are responsible for fighting infections.

The human immune system is a complex system of cells, processes and biological structures that protects the body from pathogenic microorganisms. The mucosal lining of the gut, which is maintained by p [..]

The immune system is a collection of cells and proteins that works to protect the body from potentially harmful, infectious microorganisms (microscopic life-forms), such as bacteria, viruses and fungi. The immune system plays a role in the control of cancer and other diseases, but also is the culprit in the phenomena of allergies, hypersensitivity [..]

The immune system is the body’s way of identifying and destroying diseases, intruders, or foreign cells. The immune system weakens with age, and during medical treatments for some cancers and organ tr [..]

A complex system of cellular and molecular components having the primary function of distinguishing self from not self and defense against foreign organisms or substances. The primary cellular components are lymphocytes and macrophages, and the primary molecular components are antibodies and lymphokines; granulocytes and complement system are also [..]

The cells and proteins the fight invading pathogens and protect the body from infection

Intricate mix of cellular, molecular, and antibody components (proteins) that protects the body against foreign invaders.

System of the body that protects from or resists a disease by the development of antibodies.

The cells and tissues involved in recognizing and attacking foreign substances within the body of an animal.

All internal structures and processes of the human body that provide defence against disease causing organisms, such as viruses, fungi, bacteria or parasites.

the system of the body that helps fight infections and cancer.

The system of cells and organs involved in the production and functioning of antibodies.

The body’s natural defense system that fights against foreign substances.

 the network of cells, tissues, and organs that defend the body from infection and diseaseintravascular hemolysis:

the natural defence mechanism in the body that reduces susceptibility to a disease.

A variety of cells and substances within the body that protects it from viruses, bacteria, parasites, and fungi.

the body’s defence against infection, disease and foreign substances. Immunoglobulin

your body's system that protects you from foreign substances (bacteria, viruses, etc.) through an immune response. In myositis, the immune system is thought to be overactive, causing immune cells [..]

The complex group of organs and cells that defend the body against infection or disease.

The body's response mechanism for fighting against bacteria, viruses and other foreign substances. If a cell or tissue (such as bacteria or a transplanted organ) is recognized as not belonging to the body, the immune system will act against the "invader." The immune system is the body's way to fight disease.

  Made up of white blood cells that protect your body form foreign invaders such as bacteria, viruses, and fungi, all of which may cause infections.  The immune system also attacks "foreign" cells of your transplanted liver, which can result in rejection.

An immune system is a system of biological structures and processes within an organism that protects against pathogens. To function properly, an immune system must detect a wide variety of injuries or infectious agents, including viruses, bacteria, and parasites, and distinguish them from the organism's own healthy tissue and processes. Also, [..]

The complex group of organs and cells that produces antibodies to defend the body against foreign substances such as bacteria, viruses, toxins, and cancers. Immunodeficiency

A network of cells and organs that defends the body against attacks by foreign invaders, such as bacteria and viruses.

the natural defence mechanism in the body that reduces susceptibility to a disease.

The immune system is a network of biological processes that protects an organism from diseases. It detects and responds to a wide variety of pathogens, from viruses to parasitic worms, as well as canc [..]

The immune system is a network of biological processes that protects an organism from diseases. It detects and responds to a wide variety of pathogens, from viruses to parasitic worms, as well as canc [..]