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    Function of Tonsils in protecting against pathogens

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    Please help me fill in the blank
    1. What specializations are found in tonsils to trap pathogens that might be inhaled or ingested?
    2. Lymph enters a lymph node through the Blank 1 lymphatic vessels, flows through the Blank 2 sinus, into the Blank 3 and Blank 4 sinuses, finally leaving the node through the Blank 5 lymphatic vessels.
    3. The fluid component of blood is Blank 1, which is filtered out of the capillaries to be Blank 2 fluid in the tissue. When that moves into lymphatic vessels, it is known as Blank 3 fluid.
    4. (Correct me if I am wrong) Where are stem cells found that produce lymphocytes? in Central lymphoid organs and thymus

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    Solution Preview

    I have explained in details the function of tonsils, the lymphatic and the cardiovascular system and the generation of lymphocytes from HSC. Please refer to the references, MS word document and the PowerPoint attached (for figures). please take out the relevant information needed.

    Lymphatic fluid passes through the lymph nodes and several key organs, which are spread through-out our body. This network of lymphatic vessels and lymph nodes are collectively known as the lymph system. The lymph fluid flows into the veins and rejuvenates our blood with plasma and White blood cells
    Blood while passing through the capillaries are spills out plasma into the interstitial spaces from where this fluid is re-collected by the lymph capillaries and passes the fluid to the lymph nodes. If the lymph fluid is infected with pathogens then the B and T lymphocytes are activated and they kills the pathogen thus purifying the lymphatic fluid. This filtered lymphatic fluid is then passed into the vein.
    Tonsils are part of the lymphatic system that serves as the first line of defense in the immune system. Following are the various ways Tonsils achieve this function:
    • Tonsils trap virus and bacteria, which enter the body via inhalation and ingestion. This activates the lymphatic system comprising of B and T lymphocytes that kill the pathogens.
    • Each tonsil consists of a network of crypts, which are small depressions, that store cells used to fight infection. The tonsils contain B cells, a type of white blood cell that fights infections. They also produce antibodies against polio, streptococcal pneumonia, influenza, and other infections. The tonsils also contain several types of T cells, which are white blood cells that destroy cells infected with viruses and help the body build immunity to ...

    Solution Summary

    The material above expains the functional importance of tonsils to protect our body against pathogen. It also explains the lymphatic system and how it complements the cardiovascular system. Also explained are the sites of generation of Lymphocytes.