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How are the roles of b and t cells different how are their roles similar?
Both are T and B lymphocytes are produced in bone marrow, but B lymphocytes mature in bone marrow and are part of the humoral response, while T lymphocytes mature in the thymus gland and are part of the cell mediated response.
The process by which the body remembers previous infections and produces antibodies more quickly if that infection is seen again?
Memory B cells are formed following primary infection and are important in antibody-mediated immune response in the case of re-infection. The response is very rapid. This is also known as a secondary immune response.
What plasma proteins is involved in neutralising antigens?
Immunoglobulins, specifically IgG antibodies, play a key role in neutralizing antigens by binding to them and enhancing their removal from the body. These proteins are produced by B lymphocytes in response to the presence of antigens.
Explain how the cells of the immune system evoke and maintain an immune response?
Cells of the immune system, such as T and B lymphocytes, recognize and respond to foreign invaders, called antigens, by producing specific antibodies or initiating cell-mediated responses. After the initial immune response, memory cells are formed, which help maintain a faster and stronger response upon subsequent exposure to the same antigen. This process of evoking and maintaining an immune response is crucial for protecting the body against pathogens and maintaining immunity.
What is lymphocytes contained in the thymus gland that acts on antigens?
T cells are the lymphocytes contained in the thymus gland that act on antigens. They undergo maturation and selection processes in the thymus to ensure they can recognize and respond to specific antigens. These T cells play a crucial role in the immune response by recognizing and attacking cells infected with pathogens.
The cell types that are most responsible for presenting foreign antigens together with surface antigens to specific receptors on the membrane of T lymphocytes are the macrophages and?
dendritic cells. These cells play a crucial role in activating T lymphocytes and initiating an immune response against foreign antigens by presenting antigens to the T cell receptors (TCR) on the surface of T lymphocytes. This interaction leads to the activation and proliferation of specific T cell populations to combat the invading pathogen.
Can a pathogen provoke a cell mediated response and an antibody mediated response?
no
What is formed in lymphoid tissue after originating in bone marrow?
Immature lymphocytes are formed in the bone marrow and then migrate to lymphoid tissues where they mature into T or B cells. In these tissues, they are exposed to antigens and undergo further development to become part of the immune response.
What cells types are specifically responsible for cell mediated immunity?
T cells are specifically responsible for cell-mediated immunity. They include cytotoxic T cells, helper T cells, and regulatory T cells, each playing a crucial role in orchestrating the immune response against pathogens or abnormal cells.
The immune cell that allows for subsequent recognition of an antigen resulting in a secondary response is called an?
Memory cell. Memory cells are a type of immune cell that remember specific antigens upon initial exposure, allowing for a faster and more effective response upon subsequent exposure to the same antigen.
What is the main structural difference between monocytes and lymphocytes?
Monocytes are granulocytes, meaning they have small granules in them. Lymphocytes do not. Histologically, you should be able to see some peripheral cytoplasm on a lymphocyte but not on a monocyte.
What is natural active immunity?
Active immunity involves the production of antibodies (by B lymphocytes) and cell-mediated response (with T lymphocytes). It renders relatively longer immunity (compared to passive immunity). Active immunity may be natural or artificial.This type of active immunity is said to be natural because the immunity is induced not by deliberate exposure (such as vaccination). The individual has developed immunity to a live pathogen by having been exposed to it and by developing a primary immune response that led to immunological memory.
