Immune System

Monoclonal antibodies were developed by César Milstein and Georges Köhler in 1975, for which they were awarded the Nobel Prize in Physiology or Medicine in 1984. They used hybridoma technology to produce identical antibodies that target a single antigen, revolutionizing biomedical research and therapy.

The spleen is a structure that is not involved in the production or delivery of gametes. It is part of the lymphatic system and plays a role in filtering blood, storing red blood cells, and helping the immune system fight infections.

Restraining orders are not a part of the body's first line of defense.

hahaha thats so funny the real answer is Macrophages

Monoclonal antibodies can be used to protect against disease, help diagnose a wide variety of illnesses and detect the presence of drugs or viral and bacterial products. It is these specific traits that make it so valuable.

Think about it for a second. If you lead an army into battle, and your own army start to shoot each other, what odds do you have of winning against the oposition?

If the body starts to kill it's own cells that may be used to kill pathogens, it is immediately weakened

This happens to my Mom sometimes. When she's really stressed, tired, sick, etc; her immune system starts attacking her body again. I don't know why, it just does. It happened with her immune system or something like that and also her eyes. The immune System needs to know what is friendly and a threat to the brain & body. Although it has trouble sometimes when you get a transplant and the shape/size/composition/etc isn't similar enough to your own.

False. Pathogens can include a variety of organisms such as bacteria, viruses, fungi, and parasites that can cause disease in their hosts.

When a B cell recognizes an antigen, it will undergo activation and differentiation into plasma cells, which produce antibodies specific to that antigen. Some B cells may also differentiate into memory cells that provide long-lasting immunity to the antigen. This process is essential in the adaptive immune response to eliminate pathogens and prevent future infections.

making antibodies

A quick response strategy involves having efficient systems in place to swiftly identify and address any issues or opportunities that arise. This typically includes clear communication channels, streamlined decision-making processes, and preparedness to take immediate action when needed. It also involves staying agile and adaptable to changing circumstances to respond effectively in a timely manner.

once the White blood cell (WBC) recognizes a pathogen it will use its plasma membrane to engulf the pathogen (endocytosis). the plasma membrane wraps itself around the pathogen bringing it in to the cytoplasm of the cell. it then will break off once the pathogen is inside enough. the pathogen with its surrounding plasma membrane forms an vesicle inside the larger macrophage (WBC). the vesicle and its contents are digested by the cell through the use of digestive enzymes and lysosomes.

HIV (Human Immunodeficiency Virus) attacks the T cells, which are a type of immune cell that plays a crucial role in coordinating the immune response, including the production of antibodies. By destroying these cells, HIV weakens the immune system's ability to fight infections effectively.

Perforin and granzymes are substances secreted by cytotoxic T cells to destroy target cells. Perforin creates pores in the target cell's membrane, allowing granzymes to enter and initiate cell death.

The immune system protects the body by removing bacteria and foreign bodies through mechanisms such as white blood cells, antibodies, and inflammation. These components work together to identify and eliminate pathogens that may cause harm to the body.

Diseases caused by pathogens are often contagious and include things such as Meningitis, Influenza and Tuberculosis.

Diseases not caused by pathogens are generally things which go wrong in the body. For example, Cancer, Multiple Sclerosis and Motor Neurone Disease are all diseases not caused by pathogens.

Regulatory T cells (Tregs) are a type of immune cell that suppress the immune response to prevent overactivity. They play a crucial role in maintaining immune tolerance and preventing autoimmunity by controlling and regulating the activity of other immune cells.

No, the white blood cells are divided into many types of specialized cells. The Macrophages, Granulocytes, Natural Killer cells and Dendritic (Lagerhans) cells are part of the immuno response system's first line of defense: Macrophages kill any type of pathogens they recognize as not welcome, while the Neutrophile Granulocytes are experts in bacteria killing. Dendritic cells alert the adaptive immuno response system such as T-cells. Cytotoxic T-cells then kill tissue cells infected by pathogens, and so does Natural Killer cells (but does not touch the pathogens themselves). They do not have to be activated first, but are able to find infected/sick cells by themselves, which makes them effective cancer-killers. Also, by killing infected cells they prevent growth and proliferation of more pathogens in the body. Regulatory-T-cells (suppressor cells) and T-Helper cells does not kill pathogens themselves but regulate the rest of the white blood cells.

Yes, interferons are proteins produced by the immune system in response to viral infections. They help to inhibit viral replication within infected cells, reduce viral spread to neighboring cells, and enhance the immune response against the virus.

Immature T-cells mature into effector T-cells and memory T-cells in the thymus. The thymus is a primary lymphoid organ located in the chest cavity above the heart and is responsible for T-cell maturation and selection.

B cells and T cells migrate to secondary lymphoid organs such as lymph nodes and spleen to carry out their immune functions. Here, they encounter antigens, undergo activation, and differentiate into effector cells to mount an immune response.

he was a scientist

Lymphocytes mature in the primary lymphoid organs, which are the thymus for T cells and the bone marrow for B cells. Once they mature, they circulate in the bloodstream and lymphatic system to attack pathogens and foreign invaders.