Прочитайте текст. Hemoglobin is the key element in the red blood cell. It is a complex protein that ...: ответ на тест 1072138 - Английский язык

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Hemoglobin is the key element in the red blood cell. It is a complex protein that requires iron for its formation. Oxygen picked up in the lungs during the circulation of the blood combines loosely with hemoglobin. Then, in every part of the body where it is needed for cell metabolism, oxygen is released by the hemoglobin, which picks up carbon dioxide on the return journey to the heart and lungs.
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Hemoglobin in the blood carries oxygen from the respiratory organs to …

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The red colour of the blood is the colour of the hemoglobin. 1_______. As iron carries oxygen, people who do not have enough iron do not get enough oxygen for their normal activities. 2_______. A small quantity of iodine is also necessary for good nutrition – probably less than one ten-thousandth of a gramme daily. Deficiency of iodine results in an overgrowth of the thyroid gland. 3_______. Fluorine is a constituent of the enamel of the teeth but it is absent from most foods. So many cities now add traces of fluorine to the water supply. 4_______.

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White blood cells are about 1.5 to 2 times as large as red blood cells, which outnumber them by at least 500 to 1. The average number of white blood cells in the healthy adult is around 7,000 per cubic millimeter. In the presence of infection this number may go as high as 40,000. A great increase in the white blood count is almost always a sign of infection.
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In the presence of infection the average number of white blood cells …

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White blood cells play the role of scavenger. Most of them engulf and devour bacteria and other particles of foreign matter in the blood stream. Hence they prevent and fight infection and aid in wound repair. Pus is made up largely of dead white blood cells.
The names of various different kinds of white blood cells are long and complicated: for example, polymorphonuclear eosinophil. Because they devour bacteria, they are also called phagocytes. White blood cells are made in the bone marrow, the lymph nodes, and other places in the body.
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White blood cells are cells of the immune system involved in defending the body against …

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Red blood cells are destroyed and replaced at a rate of about 1% a day. These cells are formed in the bone marrow, particularly in the spine and hip bones, the ribs and breast-bone. They are destroyed largely in the spleen.
Blood platelets are about 1/3 as large as red blood cells. They are concerned with blood clotting.
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Red blood cells begin their existence in …

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27 December, 2010
1_______,
I am requesting authorization to provide the kyphoplasty procedure for Helen Smith.
Mrs. Smith is a 75-year-old woman who presents with a history of osteoporosis and 2_______ that began approximately three months ago. Radiographic imaging including MRI confirms multiple compression 3_______. She also complained about shortness of breath and the sensation of bloating with eating.
Based on the above findings, it is my professional opinion that Mrs. Smith would benefit greatly from the kyphoplasty procedure. Therefore, I request written confirmation of your authorization for this procedure.
4_______,
Tom Grey