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18 Cards in this Set
- Front
- Back
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Where are blood cells produced? |
Bone marrow |
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What is lymph? |
Colourless fluid that originates from intercellular fluid (tissue fluid) |
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What is bone marrow |
Jelly-like tissue found in central shaft of certain bones, including thigh and pelvic bones. All blood cells develop from bone marrow stems cells. |
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Why are bone marrow stem cells multi potent? |
Because they can develop into all types of blood cells |
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What is the thymus |
It is involved in development of mature T-cells. Sits inside ribcage ; |
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What are lymph nodes |
Small, bean-shaped structures found in throat, armpits, groin, abdomen & chest. Filter & trap foreign material and are sites where antigens are usually presented to the immune system. |
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Mucosal associated lymphoid tissue (MALT) |
Small concentrations of lymph tissue (tonsils, adenoids) in body that secrete mucus: eyelids, mouth, nose& respiratory, digestive & female reproductive systems.
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What does mucus do? |
Traps foreign material |
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What is the spleen? |
A large, purple-coloured organ located above stomach. Recognises and destroys old and faulty RBC, detects foreign invaders produces antibodies |
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Primary lymphoid organs |
Responsible for production and maturation of cells of the immune system. |
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Lymphatic system |
-Part of immune system A system of lymphoid organs (thymus, bone marrow, spleen, lymph nodes, network of vessels) and lymph fluid that are involved in transporting lymphocytes and removing foreign matters. |
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Name for RBC |
Erythrocytes |
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Name for WBC |
Leucocytes |
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Other terms for 2nd line of defence |
Non specific immune response Innate |
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Main cellular components of innate immune system |
Cells that engulf and digest foreign material by phagocytosis Neutrophils Macrophages Eosinophils Basophils Mast cells Natural killer cells |
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Basophils |
Granulocyte that secretes chemicals, inc. histamines. |
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Histamines |
Cause blood vessels to dilate and increase its permeability so that blood plasma & WBC can reach site of infection more easier |
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Eosinophils |
Secrete powerful enzymes that can produces holes in pathogens like blood flukes and parasitic worms |
