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20 Cards in this Set
- Front
- Back
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Function of Lymphatic System |
1.Production, maintenance and distribution oflymphocytes (WBC) 2.Return of fluid and solutes from tissues to thebloodstream 3.Distribution of hormones, nutrients, waste productsfrom tissues of origin to general circulation |
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What is interstitial fluid? |
Fluid that moves outside of the capillary |
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Wha do lymphatic capillaries do? |
Pick up excess interstitial fluid |
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What is the production of lymph? |
Plasma --> interstitial fluid --> lymph |
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What is different about lymphatic capillaries and vascular capillaries? |
lymphatic capillaries only allow movement into the capillary |
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What does the right lymphatic duct do? |
collects lymph from the right sideof body above diaphragm (many people don’t have this duct). |
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What does the thoracic duct do? |
collects lymph from lowerabdomen, pelvis, lower limbs and left half of head, neck and chest. |
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Where does the right lymphatic duct drain into? |
Subclavian Vein |
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Where does the thoracic duct drain into? |
Venous blood at intersection of the internal jugular and subclavian veins |
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What do T Cells (T lymphocytes) do? |
directlydestroy foreign antigens or cancerous cells in the body. cell-mediated immunity |
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What do B Cells (B lymphocytes) do? |
produce proteinscalled antibodies that mark foreign antigens for destruction. antibody-mediatedimmunity. |
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What are lymphoid nodules? |
smallmasses of lymphoid tissue that are not surrounded by a fibrous capsule |
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What are the 5 tonsils? |
1 pharyngeal tonsil, 2 palatine tonsils, 2 lingual tonsils |
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What are the 3 lymphoid organs in the body? |
Lymph nodes, Spleen, Thymus |
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What do lymph nodes do? |
Bean shaped structures that filter the lymph, contain T and B cells that will be activated by foreign antigens in lymph |
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Structure of Red Pulp of Spleen |
RBCs and macrophages that remove worn out or damaged RBCs |
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Function of Red Pulp of Spleen |
filters and stores blood |
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Structure of White Pulp of Spleen |
T cells and B cells |
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Function of White pulp of Spleen |
foreignantigens will activate the T cells and Bcells |
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What is the site for t-cells? |
Thymus |
