106 results found

Search Results for: immune response

Immune response

Immune Response Definition An immune response is defined as the reaction of the body in response to the presence of a... Read More

Antigen

Antigen Definition What is an antigen? A simple definition is that an antigen refers to any substance that triggers an... Read More

Immune system

Definition noun The organ system that is involved in protecting the organism from infection, infestation, and other... Read More

Autoimmunity

Definition noun, plural: autoimmunities A type of immunity wherein the immune response is directed against own body,... Read More

Positive feedback

Positive Feedback Definition Each mechanism of the body like temperature, blood pressure, and levels of specific nutrients... Read More

Antigenic variation

Definition noun, plural: antigenic variations (immunology) The changing of surface proteins by an infectious agent to evade... Read More

Lymph nodes

Lymph nodes definition Lymph nodes are small, bean-shaped organs located in different parts of the body and act as... Read More

Immunogen

Definition noun, plural: immunogens Any substance that stimulates an immune response, such as production of specific... Read More

Autoimmune disease

Definition noun, plural: autoimmune diseases A type of disease as a result of an immune response of the body against own... Read More

Virulence

Virulence definition In biology, virulence is defined as the degree by which a pathogenic organism can cause disease.... Read More

Alloimmunity

Definition noun, plural: alloimmunities (immunology) A type of immunity that produces an immune response that is attacking... Read More

Memory cell

Definition noun, plural: memory cells A long-lived immune cell that has the ability to recognize a foreign particle that it... Read More

Symbiosis

Symbiosis Definition What is symbiosis? Symbiosis can be defined as any kind of relationship or interaction between two... Read More

Tolerogen

Definition noun A foreign antigen that suppresses immune response, or produces immune tolerance. Supplement In comparison... Read More

Memory B cell

Definition noun, plural: memory B cells A small, long-lived B lymphocyte that was previously exposed to a particular... Read More

Passive and Active Types of Immunity

The previous tutorial investigated the role of white blood cells in phagocytosis. White blood cells are also responsible... Read More

Epidermis

Epidermis Definition What is the epidermis? We can define the epidermis as one or more layers of cells forming the tough... Read More

Pinocytosis

Pinocytosis Definition What is pinocytosis?  Pinocytosis is the ingestion of extracellular fluids, i.e. the fluid... Read More

Lymphopoiesis

Definition noun The hematopoiesis of lymphocytes Supplement Hematopoiesis is the process of forming new blood cellular... Read More

Lymphocyte

Definition noun, plural: lymphocytes The white blood cell of the blood derived from the stem cells of the lymphoid series of... Read More

B lymphocyte

Definition noun, plural: B lymphocytes A lymphocyte that is produced in the bone marrow and is responsible for the... Read More

Inoculation

Inoculation Definition In Immunology, inoculation is defined as the process of introducing an antigenic substance or... Read More

Immunoglobulin

Definition noun, plural: immunoglobulins (1) Any of several classes of structurally related glycoproteins in the blood... Read More

Immunodeficiency

Immunodeficiency Inabillity to mount a normal immune response. Immunodeficiency can be due to a genetic disease or acquired... Read More

Adjuvant

Adjuvant 1. (Science: pharmacology) a substance that, when added to a medicine, speeds or improves its action which aids... Read More

Antiserum

Definition noun, plural: antiserums, antisera A serum containing immunoglobulins that act against specified... Read More

Pathogenicity

Definition noun, plural: pathogenicities The capability (of a pathogenic agent) to cause disease Supplement Pathogenicity... Read More

Lymphoid organ

Definition noun, plural: lymphoid organs The organ of the lymphatic system, and carries out various immune... Read More

How Celiac Disease Affects The Digestive System

Celiac disease is a condition that affects the digestive systems of many individuals all over the world, and in this... Read More

Antigenicity

Definition noun (1) The capacity of a molecule or an antigen to induce an immune response, that is to be recognized by and... Read More

Fibroblast

Definition noun, plural: fibroblasts Cell of connective tissue that produces and secretes fibers (e.g. collagens, reticular... Read More

Carbohydrate

Carbohydrate Definition A biomolecule refers to any molecule that is produced by living organisms. As such, most of them... Read More

Opportunistic pathogen

Opportunistic Pathogen Definition How do we define opportunistic pathogen? The opportunistic pathogen is an infectious... Read More

Pathobiology of allergy and its most severe form, anaphylaxis

When allergy season looms, some people with serious hypersensitivity to allergens tend to be apprehensive of what may come.... Read More

Vaccination

Definition noun, plural: vaccination The administration of vaccine capable of evoking an immune response against a specific... Read More

Immunity

Immunity (Science: immunology) The condition of being immune, the protection against infectious disease conferred either by... Read More

Cell wall

The cell is the structural, functional, and biological unit of all organisms. It is a membrane-bound structure containing... Read More

Allele

Allele Definition What are alleles? An allele is a term coined to describe a specific copy of a gene. Genes, the DNA... Read More

White blood cell

Definition noun, plural: white blood cells Any of the nucleated blood cells that lack hemoglobin, with a primary role in the... Read More

Agglutination

Agglutination Definition What does agglutination mean? It generally refers to the process of sticking together or the... Read More