Tumors in the mouth (oral cancer) and throat (oropharyngeal cancer) include both benign (not cancer) and malignant types. Benign tumors, although they may grow and penetrate below the surface layer of tissue, do not spread by metastasis to other parts of the body.
Innate Immunity. The innate immune system is also known as the nonspecific immune system, which provides the first line of immunological defense against infection. The molecules and the receptors of the immune system provide a broad range of protection, so that it is also referred to as ânatural immunityâ.daptive Immunity. The adaptive or specific immune system mainly attacks the specific invaders. It consists of highly specialized cells called thymus-derived T lymphocyte cells and bone marrow-derived B lymphocyte cells.
Nonspecific, non-acquired defense is found in all animals and is effective in destroying invading microbes. However it is most effective outside of the host cells. The specific defenses of acquired immunity can, not only recognize specific pathogens, but also recognize cells that have been infected by those pathogens.The high degree of specificity of the vertebrate immune system requires many different kinds of cells.You must have javascript enabled to view this website.onspecific, non-acquired defense is found in all animals and is effective in destroying invading microbes. However it is most effective outside of the host cells. The specific defenses of acquired immunity can, not only recognize specific pathogens, but also recognize cells that have been infected by those pathogens.