Презентация на тему: "Кровь".
презентация к уроку на тему

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Vocabulary Read the Nouns: er y throcyte l eu cocyte thr o mbocyte ( pl a telet) agr a nulocyte c y toplasm gr a nulocyte eo sinophil b a sophil n u trophil l y mphocyte m o nocyte h e mogl o bin Read the Verbs : to transport to convert to carry to arrive to expel to occur to remain to complete to contain

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Blood contains a fluid called plasma plus microscopical cellular elements: erythrocytes, leucocytes, thrombocyte.

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Erythrocytes are red blood cells of which 4.5-5 million are found in each cubic milllimetre. These cells are made in the bone marrow and transport oxygen (O2) to the body cells. Red cells contain a pigment (hemoglobin) which gives the blood its red colour.

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Leucocytes are white blood cells from 4, 000 to 10, 000 per cubic milllimetre existing in several types: granulocytes and agranulocytes.

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Granulocytes are cells with granules in their cytoplasm formed in the bone marrow. There are three types of granulocytes: eosinophils, basophils, nutrophils.

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1) nutrophil 2) eosinophil 3) basophil

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Agranulocytes are produced in lymph nodes and spleen. There are two types of agranulocytes: lymphocytes and monocytes.

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Thrombocytes (platelets) are tiny cells formed in the bone marrow Their number is 400,000 per cubic milllimetre. They are necessary for blood clotting. The function of platelets is to stop bleeding.

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Functions of blood : 1. Carriage of oxygen to body cells. 2. Carriage of digested food to body cells. 3. Carriage of carbon dioxide and other waste products away from body cells. 4. Carriage of hormones. 5. Defence against disease and repair of injury. 6. Maintenance of body temperature at 37C.

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Translate into English: микроскопические клеточные элементы в каждом кубическом миллиметре несколько видов лимфатические узлы костный мозг крошечные клетки свертываемость крови содержит пигмент останавливать кровотечение жидкая часть

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Answer the questions 1. What does blood contain? 2. How many erythrocytes are there in each cubic millimetre? 3. Where are red cells made? 4. What gives red cells its red colour? 5. What are the types of leucosytes? 6. Where are agranulocytes produced? 7. What types granulosytes do you know? 8. What organ forms thrombocytes? 9. How many platelets are there in one cubic millimetre?

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Fill in the gaps in the table The name of cells Number Formed in Function Erythrocytes ……… . ………… ………… Leucocytes ……… . ………… ………… Thrombocytes ……… . ………… …………

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Interesting facts about blood cells Red cells and platelets are unique among body cells in having no nucleus. Blood cells are so small that one cubic millimeter of blood (the size of a pin head) contains about 5 million of red cells, 7,000 of white cells and 250,000 platelets.

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Complete Blood Count (CBC) From AIDS InfoNet The Complete Blood Count (CBC) Red Blood Cell Tests White Blood Cell Tests The Complete Blood Count (CBC) The most common laboratory test is the complete blood count (CBC). It examines the components of blood, including red and white blood cells and platelets. Most test results are reported as amounts in a sample of blood (for example, cells per milliliter) or as a percentage. All blood cells are made in the bone marrow, the center of large bones. Some medications or diseases can damage the bone marrow. This can reduce the numbers of different types of red or white blood cells. Every laboratory has its own "reference range" or normal values for the results of each test. Most lab reports show the normal range and highlight any test results outside the normal range.

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The normal blood cell count Test Normal Range RBC 4.32-5.72 trillion/L WBC 3.5-10.5 billion/L Hemoglobin 13-17 g/bl

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Answer the last question: What have you learnt from the project? ( I have learnt that …………).

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