help with phagacites, lymphacites and t-lympasites?

Question

briefly, how do they work and what method do they use. A diagram and links on each would be nice.

Answer 1

1.phagocyte is a cell that ingests and destroys foreign matter such as microorganisms or debris via a process known as phagocytosis.These phagocytes are extremely useful as an initial immune system response to infection; neutrophils will be the first type of phagocyte to migrate to sites of injury and fight bacteria by releasing cytotoxic granules and by phagocytosis.Phagocytes engulf not only pathogens but also debris, dead or dying cells and extracellular matrix. Phagocytosis is an active process in wound healing. After engulfment into a phagosome, a lysosome which is filled with digestive enzymes (proteases and oxygen radicals) will join it to form the phagolysosome to digest phagocytosed material.

2.A lymphocyte is a type of white blood cell in the vertebrate immune system. There are two broad categories of lymphocytes, namely the large granular lymphocytes and the small lymphocytes. The large granular lymphocytes are more commonly known as the natural killer cells (NK cells). The small lymphocytes are the T cells and B cells. Lymphocytes play an important and integral role in the body's defenses.

B cells: B cells make antibodies that bind to pathogens to enable their destruction. (B cells not only make antibodies that bind to pathogens, but after an attack, some B cells will retain the ability to produce an antibody to serve as a 'memory' system.)

T cells: CD4+ (helper) T cells co-ordinate the immune response (they are what becomes defective in an HIV infection) and are important for defence against intracellular bacteria. CD8+ (cytotoxic) T cells are able to kill virus-infected cells. γδ T cells possess an alternative T cell receptor as opposed to CD4+ and CD8+ αβ T cells and share characteristics of helper T cells, cytotoxic T cells and natural killer cells.

Natural killer cells: Natural killer (NK) cells are able to kill cells of the body which are not displaying a signal not to kill them, as they have been infected by a virus or have become cancerous.

http://en.wikipedia.org/wiki/White_blood_cells

http://en.wikipedia.org/wiki/Lymphocytes

Answer 2

Phagocytes http://www.immunecentral.com/immune-system/iss10.cfm

Lymphocytes
http://www.immunecentral.com/immune-system/iss6.cfm

T lymphocytes
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/B/B_and_Tcells.html#t_cells

hope it will help