12 results found

Search Results for: t-helper cell

T-helper cell

Definition noun, plural: T-helper cells A type of T lymphocyte that assists by activating antigen-presenting leukocytes,... 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

Plasmablast

Definition noun, plural: plasmablasts An antibody-producing stem cell that could give rise to another of its kind or... Read More

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

Plasma B cell

Definition noun, plural: plasma B cells A large B lymphocyte that when exposed to antigen, produce, and secrete large... 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

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

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

Lymphocyte

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

Virulence

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

B-cell

B-cell (Science: haematology, immunology) a type of lymphocyte normally involved in the production of antibodies to combat... Read More

Phage

Definition noun, plural: phages (1) A bacteriophage: a virus capable of infecting a bacterial cell, and may cause lysis to... Read More