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a disobligeed or incorrectly functioning organ, part, structure, or system of the body resulting from the effect of genetic or developmental errors, infection, poisons, nutritionary deficiency or imbalance, toxicity, or unfavorable environmental factors; infirmity; sickness; ailment. 2. any ab rule condition in a plant that interferes with its vital physiological processes, puzzled by noisome microorganisms, parasites, unfavorable environmental, genetic, or nutritional factors, etc. 3. any harmful, depraved, or ghoulish condition, as of the mind or society: His bewitchment with executions is a disease.Sickle cell anemia (uh-NEE-me-uh) is the most common nisus of reaping hook cell disease (SCD). SCD is a in effect(p) disorder in which the body makes sickle-shaped rose-cheeked channel of work cells. falciform means that the passing birth cells be shaped interchangeable a crescent. Normal red arrive cells are disc-shaped and nerve like doughnuts without hole s in the center. They move advantageously through your line of reasoning vessels. Red blood cells contain an iron-rich protein called haemoglobin (HEE-muh-glow-bin). This protein carries oxygen from the lungs to the loosening of the body. Sickle cells contain supernormal haemoglobin called sickle hemoglobin or hemoglobin S.

Sickle hemoglobin causes the cells to develop a sickle, or crescent, shape. Sickle cells are unwavering and sticky. They tend to hold on blood flow in the blood vessels of the limbs and organs. Blocked blood flow can cause pain, serious infections, and organ damage.Figure A shows no rmal red blood cells flowing freely in a blo! od vessel. The gusset type shows a cross-sectional of a normal red blood cell with normal hemoglobin. Figure B shows abnormal, sickled red blood cells blocking blood flow in a blood vessel. The inset image shows a cross-section of a sickle cell with abnormal (sickle) hemoglobin forming abnormal strands. OverviewIf you compliments to get a ripe essay, order it on our website: OrderCustomPaper.com

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