29 Mar 2017

Blood fluid pumped by the heart



Blood fluid pumped by the heart that circulates throughout the body via the arteries veins and capillaries. An adult male of average size normally has about 6 quarts 5.6 liters of blood. The blood carries oxygen and nutrients to the body tissues and removes carbon dioxide and other wastes. The colorless fluid of the blood or plasma carries the red and white blood cells platelets waste products and various other cells and substances. Blood is the primary transport medium of the body. Oxygen enters blood in the lungs and is carried to cells and carbon dioxide, produced by cells is carried in blood to the lungs where it is expelled. Ingested nutrients electrolytes and water are transported by the blood from the digestive tract to cells and waste products are transported from cells via the blood to the kidneys for elimination in urine. Blood accounts for 7% of the human body weight. With an average density around 1060 kg/m3 very close to pure water's density of 1000 kg/m3. The average adult has a blood volume of roughly 5 liters 11 US pt. Which is composed of plasma and several kinds of cells? These blood cells which are also called corpuscles or formed elements. Consist of erythrocytes red blood cells RBCs leukocytes white blood cells and thrombocytes platelets. By volume the red blood cells constitute about 45% of whole blood, the plasma about 54.3% and white cells about 0.7%. Blood for transfusion is obtained from human donors by blood donation and stored in a blood bank. There are many different blood types in humans the ABO blood group system and the Rhesus blood group system being the most important. Transfusion of blood of an incompatible blood group may cause severe often fatal complications so crossmatching is done to ensure that a compatible blood product is transfused. Due to its importance to life blood is associated with a large number of beliefs. One of the most basic is the use of blood as a symbol for family relationships through birth/parentage to be related by blood is to be related by ancestry or descender rather than marriage. This bears closely to bloodlines and sayings such as blood is thicker than water and bad blood as well as Blood brother. A blood bank is a center where blood gathered as a result of blood donation stored and preserved for later use in blood transfusion. The term blood bank typically refers to a division of a hospital where the storage of blood product occurs and where proper testing is performed to reduce the risk of transfusion related adverse events.  It sometimes refers to a collection center and indeed some hospitals also perform collection. The different markers that can be found in blood make up eight possible blood types. O negative.  This blood type doesn't have A or B markers, and it doesn't have Rh factor’s positive. A negative. A positive. B negative. B positive. AB negative. AB positive .In general Rh negative blood is given to Rh-negative patients, and Rh positive blood or Rh negative blood may be given to Rh positive patients. The universal red cell donor has Type O negative blood type. The universal plasma donor has Type AB blood type. Everyone has an ABO blood type A, B, AB, or O and an Rh factor positive or negative. Just like eye or hair color our blood type is inherited from our parents. Each biological parent donates one of two ABO genes to their child. The A and B genes are dominant and the O gene is recessive. Notice a raised bump continued bleeding or pain at the needle-stick site when you remove the bandage. Feel pain or tingling down your arm, into your fingers. Become ill with signs and symptoms of a cold or flu such as fever, headache or sore throat within four days after your blood donation.                                                                                             

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