Although scientific evidence shows that blood products have never been safer since the introduction of several measures in the last years, uncertainty still persists in the public. Components of human blood percentages free pdf ebook. The components of blood include red blood cells, white blood cells, platelets, and plasma. Since these living cells are suspended in plasma, blood is known as a fluid connective tissue and not just fluid.
Rbc and granulocyte components, then the donors rbcs must be compatible with the recipients plasma table 19. The fluid part is known as blood plasma that makes 55% of total blood volume and the rest comprises the cellular components or the formed elements. Blood pressure readings measure systolic and diastolic pressures as the heart goes through the cardiac cycle. These blood cells which are also called corpuscles or formed elements consist of. Blood is a mobile connective tissue composed of a fluid, the plasma and the cells, the blood corpuscles. Certain white blood cells mature in the lymph nodes, spleen, and thymus gland. The complete blood count cbc is one of the most commonly ordered blood tests. Alternative procedures for blood and blood components during. Describe the components of blood and their relative proportions. Some blood cells carry oxygen necessary for metabolic reactions, some blood cells fight off invading substances that could destroy your cells, and other blood cells help to form clots, which keep your body from losing too much blood.
Ppt blood components powerpoint presentation free to. Overview of blood boundless anatomy and physiology. The volume percentage of all blood cells in the whole blood is about 45% of adults hematocrit. Ziser lecture notes, 2005 2 can be found in the blood project now underway to identify every chemical in blood serum plasma with clotting factors removed plasma proteins 8% of blood. Physick, performs the first human blood transfusion, although he does not publish this information. These carry oxygen from the lungs to the rest of the body white blood cells leukocytes. Blood is a highly specialized tissue composed of more than 4,000 different kinds of components. Biological medicines such as blood products and related in vitro diagnostic tests are lifesaving components of every day medical practice worldwide. Plasma is the liquid component of blood, in which the red blood cells, white blood cells, and platelets are suspended. As different blood components have different relative density, sediment rate and size they can be separated when centrifugal force is applied.
If youre seeing this message, it means were having trouble loading external resources on our website. The table covers elements and compounds of relatively low molecular weight. People requires transfusion in various conditions such. Which statement correctly describes the activities of the 2 red blood cells can move, but white blood cells cannot. If you examine a stained smear of human blood under the. Quality assurance of blood components is published by the edqm isbn 9789287170224. Blood and blood components are biological products and living human tissue intended for use in patient treatment. Blood components should be aboidentical with the transfusion recipient, although situations frequently arise in which this is not possible table 19. It contains erythrocytes, leucocytes, thrombocytes platelets and plasma. Oct 15, 2014 4 components of blood and their functions 1. This article needs additional citations for verification.
Alternative procedures for blood and blood components. The whole blood which is a mixture of cells, colloids and crystalloids can be separated into different blood components namely packed red blood cell prbc concentrate, platelet concentrate, fresh frozen plasma and cryoprecipitate. References 1 and 4 give extensive information on enzymes, hormones, vitamins, and other blood constituents. It appears as a strawcolored fluid and is composed mainly of water, but also carries. The total amount of blood in humans varies with age, sex, weight, body type, and other factors, but a rough average figure for adults is about 60 millilitres per kilogram of body weight.
This article focuses on the main components and functions of human blood. Whole blood is a mixture of cellular elements, colloids and crystalloids. Blood and blood components safety, quality, training and. Of these, the larger part is plasma, comprising about 55%.
The transfusable components that can be derived from donated blood are red cells, platelets, plasma, cryoprecipitated ahf cryo, and granulocytes. Blood is made up of multiple components, including red blood cells, white blood cells, platelets, and plasma. Blood carries the following away from the body tissues. Plasma, white blood cells, red blood cells, platelets. Blood pressure is the force at which blood exerts pressure against artery walls as it circulates throughout the body. Human blood is composed of two parts, viz, fluid and cellular. Red blood cells circulate for about 4 months, platelets for about 9 days, and. Unlike the heart and the blood vessels, which are organs, blood is a complex tissue. The cellular components of blood are erythrocytes red blood cells, or rbcs, leukocytes white blood cells, or wbcs, and thrombocytes platelets. In fact, you can feel it moving under your skin by feeling your pulse. An acceptable circular of information for the use of human. When these major components are further fractionated eg cryoprecipitate the first few steps might retain the term components, but on further processing and pooling they lose the stamp of blood component but blood products of course eg human serum albumin, ivig, etc. Although often collected as whole blood and separated into major components prior to transfusion, automated collections have become common practice whereby the components that are needed for transfusion are the. This bundle contains a powerpoint presentation of blood and the components of blood f.
Special machines that analyze the different components of blood in less than a. Components of blood merck manuals consumer version. To supplement this technical guide, it was thought useful to generate a compilation of all council of europe legal instruments relevant to transfusion activities under the title of blood and blood components. This circular was prepared jointly by aabb, the american red cross, americas blood centers, and the armed ser vices blood program. This essential fluid carries out the critical functions of transporting oxygen and nutrients to our cells and getting rid of carbon dioxide, ammonia, and other waste products. Blood cells are produced by bone marrow within the bone. Plasma plasma is the liquid component of blood, in which the red blood cells, white blood cells, and platelets are suspended. Pdf the whole blood which is a mixture of cells, colloids and crystalloids can be separated into. The food and drug administration recognizes this circular of information as an acceptable extension of container labels. The liquid component of the blood in which the following blood cells are suspended. Cells and platelets make up about 45 45 4545 % \% %percent percent of human blood, while plasma makes up the other 55 55 5555 % \% %percent percent. Blood accounts for 7% of the human body weight, with an average density around 1060 kgm 3, very close to pure waters density of kgm 3.
White blood cells leukocytes help fight infections and aid in the immune process. In the systole phase of the cardiac cycle, the heart ventricles contract beat and pump blood into the arteries. It constitutes more than half of the bloods volume and consists mostly of water that contains. These help fight infections and aid in the immune process. It transports all the substances such as blood cells, hormones, nutrients and excretory substances throughout the body. Science biology human biology circulatory and pulmonary systems. Blood is a circulating tissue composed of fluid, plasma, and cells. It constitutes more than half of the blood s volume and consists mostly of water that contains dissolved salts. Bone marrow stem cells develop into red blood cells, white blood cells, and platelets. Human blood consists of about 22 percent solids and 78 percent water. Blood absorbs oxygen from the lungs and transports it to different cells of the body. In hospitals the blood is collected and separated into major components before transfusion. Circular of information for the use of human blood and blood components. This essential fluid carries out the critical functions of transporting oxygen and nutrients to our cells and getting rid of carbon.
Overview of blood and blood components health encyclopedia. Blood plasma contain 55% of the blood and 92% of the plasma is water. It constitutes more than half of the bloods volume and consists mostly of water that contains dissolved salts. Four of the most important ones are red cells, white cells, platelets. Australian code of good manufacturing practice for human. Alternative procedures for blood and blood components during the covid19 public health emergency guidance for industry. Blood, a living tissue circulating throughout the human body, is comprised of red blood cells, white blood cells, platelets and plasma.
Australian code of good manufacturing practice for human blood and blood components, human tissue and human cellular therapy products page 4 of 29 v1. This bundle is for the complete lesson on blood and blood components for a human anatomy and physiology course. Blood is a fluid connective tissue composed of 55% plasma and 45% formed elements including wbcs, rbcs, and platelets. The whole blood which is a mixture of cells, colloids and crystalloids can be separated into different blood components namely packed red blood cell prbc concentrate, platelet concentrate, fresh. Blood functions of blood transporting nutrients respiratory gases waste products distributing body heat components of blood a type of connective tissue formed elements living blood cells plasma nonliving fluid matrix. The average adult has a blood volume of roughly 5 litres 11 us pt or 1.
When you are wounded, blood comes out of that wound quickly. Red blood cells erythrocytes carry oxygen from the lungs to the rest of the body. Pdf overview of blood components and their preparation. Plasma the plasma is the light yellow liquid portion of the blood and is about 90% water. These carry oxygen from the lungs to the rest of the body. Overview of blood and blood components childrens wisconsin. This project involved the who blood regulators network brn, in cooperation with the. The complete blood count is the calculation of the cellular formed elements of blood. In increasing order, the specific gravity of blood components is plasma, platelets, leucocytes buffy coat bc and.
Although scientific evidence shows that blood products have never been safer since the introduction of several measures in the last years, uncertainty still. Plasma, in which the blood cells are suspended, including. An additional component, white cells, is often removed from donated blood before transfusion. By volume, the rbcs constitute about 45% of whole blood, the plasma about 54. Whole blood contains red cells, white cells, and platelets 45% of volume. Complete blood count cbc normal ranges, test results, chart. Please help improve this article by adding citations to reliable sources. Circular of information for the use of human blood and blood aabb federal law prohibits dispensing the blood and blood components described in this circular without a prescription. The underlying concept is that blood and blood components are biological therapeutic products of human origin. Blood, fluid that transports oxygen and nutrients to cells and carries away carbon.
Blood component separation is a major subdivision of transfusion medicine. Apr 29, 2020 blood makes up about 8% of the human body weight. Biophysical characteristics of the blood 1 specific gravity blood 1056 1521063 kgm 3 plasma 1027 red blood cells 1090 2 viscosity water 1. In blood banking, the fractions of whole blood used for transfusion are also called components. Its a wellknown fact that a human being has an average 5 liters of blood in his body. Its composition and function the blood in our circulatory system is a watery based fluid and consists of two basic components. Many substances required by the body can be found in the blood plasma. Blood and blood components 12 considering that the government of finland has expressed the desire to participate in the operation of the abovementioned european blood bank, resolves.