Regional Lymph Nodes Flashcards, test questions and answers
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What is Regional Lymph Nodes?
Regional lymph nodes are important for many functions in the body. They are responsible for filtering and trapping bacteria, viruses, and other antigens from the lymphatic system, which helps to protect the body from harm. In addition, they also play a role in immune responses by producing specialized cells that can recognize foreign substances and create antibodies to fight off infections.Lymph nodes can be found throughout the body, but they are specifically located in areas within close proximity to organs such as the lungs, stomach, intestines, kidneys and spleen. It is this close proximity that allows them to effectively filter out any potentially harmful substances that circulate through these organs. In cases of a localized infection or inflammation of an organ or tissue near one of these lymph nodes, inflammation may also occur directly in the node itself – causing swelling that can be felt as a lump on examination. This phenomenon is referred to as ˜lymphadenitis’ and may require further medical examination or treatment depending on its severity.The size of regional lymph nodes varies depending on their location throughout the body; however their function remains constant regardless of size – acting as surveillance mechanisms for pathogens or antigens entering our bodies from outside sources. Another important role played by regional lymph nodes is their ability to store white blood cells called ˜lymphocytes’ which help protect against infection by recognizing particular foreign invaders such as bacteria or viruses. If any suspicious material enters our bodies through our swallow reflexes (such as food), they will immediately trigger an immune response via these stored cells resulting in either neutralization or destruction of said material if it is deemed harmful enough by our bodies’ defense mechanisms. In conclusion regional lymph nodes play an incredibly important role within our bodies due to their ability to both filter out unwanted material entering into our systems via swallowed reflexes and also provide crucial protection against infection via stored white blood cells (lymphocytes). As such it is important for individuals with any kind of localized inflammation or swelling near one of these areas should seek medical help immediately if symptoms persist over time so proper diagnosis/treatment can be provided if necessary.