What is a lysozyme
An enzyme that kills bacteria by breaking down their cell wall
What is the inflammatory response
The inflammatory response (inflammation) occurs when tissues are injured by bacteria, trauma, toxins, heat, or any other cause. The damaged cells release chemicals called histamines. These chemicals cause blood vessels to leak plasma fluid containing antibodies and white blood cells into the tissues, causing swelling.
What is phagocytosis
Phagocytes are white blood cells that engulf bacteria and other foreign matter in the blood and tissues. phagocytes include both neutrophils and macrophages
what are neutrophils
Neutrophils are a type of white blood cell. They make up approximately 40 percent to 60 percent of the white blood cells in our bodies, and are the first cells to arrive on the scene when we experience a bacterial infection.
What are macrophages
Monocytes/macrophages circulate in the blood and become macrophages in the tissues. These cells are very important in alerting the immune system about an infection. Macrophages also help to overcome infection by secreting signals that help activate other cell types to fight against infections. They rid the body of worn-out cells and other debris. They also become antigen presenting cells
What is an interferon
Provide non specific defence against viruses, when a microbe-infected cell produces this protein it diffuses to the surrounding cells where it prevents microbes from multiplying, inhibing microbial protein synthesis
What are b lymphocytes
B cells, also known as B lymphocytes, are a type of white blood cell of the lymphocyte subtype. They function in the humoral immunity component of the adaptive immune system by secreting antibodies. They're formed and matured in the bone marrow
What are t lymphocytes
A T cell, or T lymphocyte, is a type of lymphocyte that plays a central role in cell-mediated immunity. They're formed in the bone marrow but mature in the thymus gland and contain only one specific type of antigen receptor on their surface
What are t helper cells
The T helper cells are a type of T cell that play an important role in the immune system, particularly in the adaptive immune system. They help the activity of other immune cells by releasing T cell cytokines. These cells help suppress or regulate immune responses.
What are t killer cells
A cytotoxic T cell is a T lymphocyte (a type of white blood cell) that kills cells that are infected (particularly with viruses), or cells that are damaged in other ways.
What is a b effector cell
these differentiate to produce plasma cells, which release antibodies into the blood an lymph. These plasma cells only last for a few days
What is a b memory cell
Remain in the blood for months or years enabling memory of an antibody so when in contact with the same antigen again the response is much quicker
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