| 单词 | red blood cell |
| 释义 | red blood cell (once / 34866 pages) n Red blood cells are an important part of your blood, with the important job of carrying oxygen throughout your body. Humans have as many as 30 trillion red blood cells. Red blood cells are also called erythrocytes. They move constantly in the human body, picking up oxygen in the lungs and delivering it to the heart, which spreads oxygen through the body with every pump of blood. Red blood cells also contain hemoglobin, a protein rich in iron that gives blood its red color. If you don't get enough iron in your diet, your body can't make the hemoglobin your red blood cells need. WORD FAMILYred blood cell: red blood cells USAGE EXAMPLESThe porphyrias are a group of diseases caused by a problem in the breakdown of hemoglobin, the oxygen-carrying part of red blood cells. New York Times(Dec 09, 2016) During intense exertion, sickling causes a logjam of red blood cells in the blood vessels, leading to decreased blood flow and explosive muscle breakdown. Washington Times(Dec 02, 2016) Nature exploits a number of common metals in biochemistry: notable cases include iron in red blood cells and magnesium in chlorophyll. Nature(Nov 23, 2016) n a mature blood cell that contains hemoglobin to carry oxygen to the bodily tissues; a biconcave disc that has no nucleus Syn|Hypo|Hyper RBC, erythrocyte macrocyte, megalocyte abnormally large red blood cell (associated with pernicious anemia) megaloblastabnormally large red blood cell present in pernicious anemia and folic acid deficiency acanthocytean abnormal red blood cell that has thorny projections of protoplasm microcytean abnormally small red blood cell (less than 5 microns in diameter) reticulocytean immature red blood cell containing a network of filaments or granules sickle cellan abnormal red blood cell that has a crescent shape and an abnormal form of hemoglobin siderocytean abnormal red blood cell containing granules of iron not bound in hemoglobin spherocytean abnormal spherical red blood cell target cellan abnormal red blood cell with the appearance of a dark ring surrounding a dark center; associated with anemia blood cell, blood corpuscle, corpuscle either of two types of cells (erythrocytes and leukocytes) and sometimes including platelets |
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