¶ … network of lymph vessels and lymph nodes in the human body termed the lymphatic system that is an important component of the immune system (Lymph system, 2015). The lymphatic network collects waste materials, fluid, and pathogens such as bacteria and viruses in the body and carries lymph, a clear watery fluid that contains white blood cells called lymphocytes that help fight infections (Lymph system, 2015). To gain some additional insights into its purpose and operation, this paper provides an explanation concerning why the lymphatic system is not found in some parts of the body and describes what areas have no lymph or lymphatic vessels. A summary of the research and important findings concerning these issues are provided in the conclusion.
Review and Discussion
In 1652, the Danish physician Thomas Bartholin (1616 -- 1680) published a description of the human thoracic duct, noting that these lacteal vessels created another bodily circulatory system which he termed "the lymphatic system" (Windelspecht, 2002). Subsequently, a Swedish physician, Olof Rudbeck (1630 -- 1702), published an expanded description of the lymphatic system that proved that rather than flowing to the liver, lymphatic fluid is actually produced by the liver (Windelspecht, 2002).
Today, it is known that...
It is also known that the lymphatic system is a second circulatory system that is comprised of both lymphatic vessels and lymphatic tissues and organs (The lymphatic system, 2015). A definition of these two components is provided below:
Lymphatic vessels are similar to and connect to blood vessels but unlike the blood vessels that transport blood that remains in the blood circulation, lymphatic vessels transport lymph which eventually enters the blood circulation;
Lymphoid tissues and organs are located in various body sites and abundantly populated by lymphocytes (Lymphatic system, 2015). .
Although lymphatic capillaries originate in the connective tissue of virtually all human organs, lymphatic vessels are not present in the human brain, bone marrow, spinal cord, eyeballs, cartilage, or inner ear; however, lymphocytes are present in some of these tissues (The lymphatic system, 2015). In this regard, Cavendish (2004) advises that, "While the organs of the chest and abdomen are richly supplied with lymphatic vessels, there are none in the brain or the spinal cord" (p. 1063). The…
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An interesting view of the immune system with particular implications for the current review and collation of information is provided by the field of computer science. The immune system makes many series of continual trade-offs, distributing resources in a way that necessarily leaves certain vulnerabilities in the system as a whole while providing greater comprehensiveness in coverage and protection when necessary (Hofmeyr 1997). This makes the immune system an adaptive
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This has been the traditionally used mode of treatment for non-Hodgkin's Lymphomas, but the fact remains that there have not been many clinical trials conducted that would reveal the benefits of CHOP in comparison to various other chemotherapy options for the treatment of CLL, which is a very slowly growing form of cancer and is therefore conversely very difficult to treat and cure because of the fact that all
Physiological Effects of Hodgkin's Disease In this paper I shall give an overview of Hodgkin's disease while focusing on its physiological effects. Specifically, the paper consists of an overview of the disease, describes how the disease affects the body cells and tissues, and how the treatment attacks the disease and affects the body, besides reviewing the treatments available. Hodgkin's disease is one of the two (and less severe) types of cancer of