Posted: January 23rd, 2023
After reviewing and studying this module’s content, answer the following questions. Be sure to complete all lab activities and attend/watch all live lectures before completing this assignment. All of your answers should be written in your own words, using full sentences, correct terminology, and proper spelling and grammar.
The lymphatic system is a network of vessels, tissues, and organs that help remove excess fluids from body tissues and transport lymph, a clear fluid containing immune cells, throughout the body. The lymphatic vessels, which are similar to blood vessels, carry lymph to the lymph nodes, where immune cells called lymphocytes filter out and destroy harmful substances, such as bacteria and viruses. The spleen, thymus, tonsils, and bone marrow are also part of the lymphatic system and play important roles in the immune response.
The immune system is the body’s defense against infectious organisms and other foreign substances. It is made up of various types of white blood cells, including lymphocytes (T cells and B cells) and phagocytes, as well as antibodies and complement proteins. T cells (or T lymphocytes) play a central role in cell-mediated immunity, which targets infected or cancerous cells within the body. B cells (or B lymphocytes) produce antibodies, which are proteins that specifically target and neutralize foreign invaders such as viruses and bacteria.
The immune system also includes the thymus, spleen, lymph nodes and bone marrow which are important in the production and maturation of immune cells. The lymph nodes are small, bean-shaped structures that are located throughout the body, including in the neck, armpits, and groin. They filter lymph and house immune cells that help the body fight off infections. The spleen is an organ located in the upper left part of the abdomen that also filters lymph and removes old or damaged blood cells. The thymus is a gland located in the ch
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