Describe how the immune cells can distinguish from self and non-self
The body reconizs the self antigen as the person contain MHC , which are marker on the self antigen and body doesnot make antibodies against such cells , the MHC is major histocompatibility complex in human it is HLA gene which are maker gene in the cell.
Describe how the immune cells can distinguish from self and non-self
1) What is the difference between non-pathogen, pathogen and opportunistic pathogen? 2)How does HIV affect the immune system? 3)Describe how B-cells and T-cells get activated in the adaptive immune response. 4)Describe how the immune cells can distinguish from self and non-self.
How can the immune system orchestrate protection from disease without killing us in the process IQ4: Homeostasis: A balance of the good and bad B- and T-lymphocytes are derived from bone marrow- derived lymphoid precursors. Before maturation, naive T-lymphocytes (T-cells) must pass through the thymus where they undergo positive and negative selection. A tumour encounters the immune system frequently during its progression from a neoplasia to carcinoma, which can often take several years. There are a number of host mechanisms...
1.Distinguish the lymphatic system from the immune system. 2.Describe the structure and distribution of lymphatic vessels. 3.Explain how lymph forms, and describe the mechanisms by which it is transported. 4.List and explain the important functions of the lymphatic vessels. 5.Describe how lymph nodes function as lymphatic organs. Describe the path of lymph through a node.
1. What are the 4 types of hypersensitivity reactions? Identify and describe each. 2. How do antibodies cause tissue injury and disease? What are some examples of disease caused by IgG or IgM antibodies or immune complexes, what is their pathogenesis, and what are their principal clinical and pathologic manifestations? 3. Identify and describe the mechanisms employed by the innate immune system that permit it to distinguish between self and non-self. Explain how innate immune system reactions against self are...
How does the immune system distinguish between food antigens and the antigens of invading bacteria that it must fight? (Describe 2 routes of Ag presentation of soluble food antigens) Explain the mechanism of food allergy. How an oral tolerance can be breached?
Inflammatory mediators released by immune cells generally function to combat infectious pathogens. Describe and give examples of two non-immune functions by inflammatory mediators.
Inflammatory mediators released by immune cells generally function to combat infectious pathogens. Describe and give examples of two non-immune functions by inflammatory mediators.
Explain how a superantigen toxin non-specifically stimulates T cells. Why does non-specific stimulation of T cells make a person sick? Explain the molecular mechanisms by which quorum sensing regulates TSST-1 expression. How do superantigens promote immune evasion? Describe impacts on B cells and T cells Why is toxic shock syndrome associated with high absorbency tampons and menstruation?
Explain how the adaptive immune response is able to generate the diversity of antigen receptors necessary to recognize the multitude of foreign antigens. Explain how clonal selection contributes to the development and expansion of antigen specific lymphocytes that do not respond to self. Distinguish cytokines and chemokines and their roles in the immune response What are the 3 roles of antibody in the immune response What are the two types of T cells that contribute to cellular immunity? What are...
List two things that can help distinguish prokaryotic cells from eukaryotic cells.