B lymphocytes, also known as B cells, are a type of white blood cell that plays a crucial role in the immune system. These cells are responsible for producing antibodies, which help to fight infections and diseases. B cells are produced in the bone marrow and undergo a process known as "immunocompetence," which refers to the development of the ability to respond to foreign invaders such as viruses and bacteria.
The process of immunocompetence begins during fetal development, when B cells are first produced in the bone marrow. As they mature, B cells migrate to the spleen and lymph nodes, where they encounter a variety of antigens and become activated. This process is known as "clonal selection," and it results in the production of B cells with specific receptors on their surface that are capable of recognizing and binding to specific antigens.
Once activated, B cells differentiate into two main types: plasma cells and memory B cells. Plasma cells are responsible for producing large amounts of antibodies, which are released into the bloodstream to help fight infections. Memory B cells, on the other hand, remain in the body and are responsible for providing long-term immunity to specific infections.
There are several factors that can affect the development of immunocompetence in B cells, including genetics, age, and the presence of certain diseases or disorders. For example, individuals with certain genetic mutations may have an impaired ability to produce B cells, leading to a weakened immune system. Similarly, the elderly may have a decreased ability to produce B cells due to the natural decline in immune function that occurs with aging.
Overall, the process of immunocompetence in B cells is essential for the proper functioning of the immune system. Without this process, the body would be unable to effectively fight infections and diseases, leading to an increased risk of illness and disease.
224 Ch. 21 Flashcards
A Antigens can include proteins, nucleic acids, lipoproteins, glycoproteins, and certain large polysaccharides. T lymphocytes develop immunocompetence in a variety of ways. C A vaccination is an example of the introduction of passive immunity into the body. Which of the following factors contributes to B cell activation? T cells migrate to the thymus gland and become immunocompetent there. A targeting foreign cells so that complement proteins can cause cellular lysis B binding and inactivating chemical toxins released by bacteria or other microorganisms C linking soluble antigens together so that they fall out of solution D cross-linking cell-bound antigens on red blood cells when blood types are properly matched Which statement is true about T cells? All other lymphoid organs are referred to as secondary lymphoid organs C After becoming immunocompetent, the naive T cells and B cells are exported to the bone marrow where the ecnounters with antigens occur D T cells and B cells become fully immunocompetent when they bind with recognized antigens Innate body defenses to disease include surface membrane barriers, such as the skin and mucous membranes, as the first line of defense. They mature into antibody-producing plasma cells or memory B cells in response to antigens, which can be quickly reactivated after secondary challenge. Lymphocytes form in the thymus and bone marrow yellow of the lymphoid organs, which are known as central or primary.
Chapter 21 (Mastering Questions) Flashcards
Where do B lymphocytes develop? During T and B lymphocyte maturation, the selection for weakly self-binding cells is the primary mechanism for developing immune tolerance to self-antigens. Most lymphocytes have a short lifespan, with an average lifespan of a week to a few months; however, a few can live for years, providing a pool of long-term T and B cells. High lymphocyte blood levels indicate that your body is suffering from an infection or other inflammatory disease. Where do B lymphocytes mature quizlet? What happens if the lymphocyte count is high? Both cells are made in the Bone marrow and only the B — Lymphocytes mature in the Bone marrow, whereas the T Lymphocytes travel to the Thymus gland where they mature. Antibodies are produced by a type of white blood cell. In bone marrow, B cells develop immunocompetence the ability to recognize a specific antigen. C The part of antigen molecule that initiates immune responses are called epitopes or antigenic determinants D Antigens only come from microbes Which of the following statements is incorrect or false? B cells in mammals mature in the bone marrow, which is the heart of most bones.
B lymphocytes develop immunocompetence in the Select one a thymus b spleen c
The use of antibodies that cause cell lysis and kill invading cells Which of the following statements is incorrect or false? What characterizes the chemotaxis phase of phagocyte mobilization? Is it possible to make B cells from bone marrow? Monocytes would not be able to migrate into infected tissue and differentiate into macrophages The antivenom used to treat venomous snake bites is an antibody produced in an animal such as a horse. The four signs of inflammation are swelling, redness, heat, and pain. The inoculations are required to try to prevent epidemics of these microbiological infections. The newly formed lymphocytes migrate from these primary organs to peripheral or secondary lymphoid organs more… Where do T lymphocytes finish their maturation and develop immunocompetence? As your body recovers its lymphocyte levels, follow a healthy diet plan, get plenty of rest, and avoid germs. B cells, which are produced in the bone marrow, migrate to the spleen and other secondary lymphoid tissues, where they mature and differentiate into immunocompetent B cells.
