The lymphocytes is a main and chief cells of immune system .The lymphocyte T-Lymphocyte and B-Lymphocyte both lymphocyte are produced from stem cells in bone marrow by process of Haematopoiesis.Then differentiating cells from the stem cells, from the immature lymphocytes and destined to become thymocytes ,migrate via blood to the thymus .
They mature Lymphocyte circulate in the body fluids and many of them reside in the lymphoid organ eg :Lymph node,spleen. Sensitised both two lymphocytes again undergo process of division and T lymphocyte produce a specific clone of T cell with the immune functions.B lymphocyte produce produce plasma cells and Clone of T lymphocyte play major role in cell mediated immunity . Eg Helper T cells,Killer T cells ,suppressor T Cells, Memory T cells etc.
The specialized cells such as monocytes/Macrophages and dendritic cells .monocyte as blood macrophage and histocytes as tissue Macrophages and it derived from bone marrow for immune stimulation.
3. Describe the origin of immune cells in cell-mediated immunity including: Lymphocyte precursors in bone marrow...
Lymphocyte Development 1. B cell development in the bone marrow shares may features with T cell development in the thymus. A) Discuss what you consider to be the two major goals of lymphocyte development (i.e, what is the purpose of the Bone marrow and Thymus environments). B) Describe what occurs during the Precursor B cell stage and identify/describe the analogous stage in T cells.
just question #2 Lymphocyte Development 1. B cell development in the bone marrow shares may features with T cell development in the thymus. A) Discuss what you consider to be the two major goals of lymphocyte development (i.e. what is the purpose of the Bone marrow and Thymus environments). B) Describe what occurs during the Precursor B cell stage and identify/describe the analogous stage in T cells. 2. With regards to what we've discussed regarding T cell development and alloreactivity,...
Lymphocyte Development 1. B cell development in the bone marrow shares may features with T cell development in the thymus. A) Discuss the two major goals of lymphocyte development? B) Compare and contrast the ordered steps of receptor rearrangement in B and T cells. C) What cell surface molecules make up the pre-B cell receptor and the pre-T cell receptor and are they only required for development?
Help with anatomy! Thanks D Question 6 What is the effector cell of humoral immunity? B lymphocyte Plasma cell O B memory cells O Helper T cell Question 7 Which leucocyte is most central to the adaptive immune response? B lymphocyte O T helper cell O T cytotoxic cell O T regulatory cell Question 8 A vaccine is an example of O naturally acquired active immunity O artificially acquired active immunity O naturally acquired passive immunity O artificially acquired passive...
23. In adaptive (acquired) immunity, what plays a role in the cell-mediated immune response? Plasma cells Opsonization Destruction of pathogens via phagocytosis Release of cytokines by helper T cells The complement system
Answer the following questions related to immunity. Describe the differences between cell-mediated immunity and antibody-mediated immunity. Describe the differences between innate/natural immunity and acquired immunity. What is the antibody-antigen complex (AB-AG)? Describe the roles of the T cells and B cells. Describe one auto-immune disorder (select any autoimmune disorder and describe it).
Answer the following questions related to immunity. Describe the differences between cell-mediated immunity and antibody-mediated immunity. Describe the differences between innate/natural immunity and acquired immunity. What is the antibody-antigen complex (AB-AG)? Describe the roles of the T cells and B cells. Describe one auto-immune disorder (select any autoimmune disorder and describe it).
Produces antibodies; an activated B cell Related to T cells but show no antigen specificity; active against cancer and viral infections Reside throughout the RES; process and present foreign matter to lymphocytes Participate in cell-mediated immunity; modulate immune functions Nonmotile; bound to connective tissue; trigger local inflammatory reactions Small; second most common white blood cell; two types Scarcest type; function in inflammation and allergies; attract white blood cells toward site of infection Mature in bone marrow; part of memory; humoral...
20 Handout IG1-2 Matching Activity: Organs of the Immune System Match the organ of the immune system with its function primary or secondary Primary or Secondary? Then identify whether the organ is Organ Function A. Spleen adjacent tissues to filter foreign antigens from interstitial fluid Collects lymph fluid from B. Bone marrow cells and foreign antigens from the blood Removes old and damaged C. Lymph node Produces T cells to protect the body from foreign invaders D. Thymus The largest...
Match the vocabulary word with the proper definition. Definitions _____ 1. involves mainly T cells and leads to the destruction of cells that are infected with viruses _____ 2. involves mainly B cells and takes place in blood and lymph _____ 3. being able to resist a pathogen that infected the body in the past _____ 4. the deliberate exposure of a person to a pathogen in order to provoke an immune response _ ____ 5. part of the immune...