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Chapter 20 anatomy
Lymphatic System
Question | Answer |
---|---|
What are the main structures of the lymphatic system? | lymphatic vessels and lymph nodes |
What are the main components of the immune system? | lymphocytes, lymphoid tissue, and lymphoid organs |
What makes up the fluid component of lymph? | 1. Blood Capillary = Plasma 2. Tissue Space = Interstitial Fluid 3. Lymph Capillary = Lymph |
Lymph flows only toward the | heart; one-way system |
Lymphatic System | lymphatic capillaries collect fluid from loose connective tissue TO lymph travels in lymphatic vessels TO vessels with lymph go through LYMPH NODES TO lymph is delivered to great veins in neck |
Lymphatic Vessels Hierarchy? | Lymphatic Capillaries TO lymphatic vessels (Lymph Nodes) TO lymph trunks to Lymph ducts |
What is fatty lymph called? | chyle |
What is Edema? | swelling of the tissues due to an excess tissue fluid |
What are lymph Nodes? | bean shaped organs made of lymphoid tissue located along lymphatic vessels |
What is the function of the lymph nodes? | To Filter the Lymph and activate and produce lymphocytes |
What brings lymph to the lymph node? | afferent lymphatic vessels |
What carries lymph away from the lymph node? | efferent lymphatic vessels |
What is the function of the immune system? | recognize specific foreign molecules and destroy pathogens effectively |
What do B lymphocytes turn into during immune system response? | become plasma cells and secrete antibodies |
What do killer T cells do during immune system response? | destroy antigen-bearing cells |
Where do T lymphocytes come from? | the thymus |
Where do B lymphocytes come from? | bone marrow |
What are short lived, attack immediately lymphocytes called? | Effector lymphocytes |
What are lymphocytes that remain in circulation for years called? | memory lymphocytes |
What are specialized type of connective tissue, containing vast amount of lymphocytes called? | lymphoid tissue |
Where can Lymphoid tissue be located? | 1. Mucous membrane of digestive, urinary, respiratory and reproductive tracts 2. lymphoid organs (spleen, thymus, lymph nodes) |
What are Lymph nodes made up of? | Lymphoid tissue |