Presentation on theme: "Blood Components Consists of: A.) Plasma (55% of the blood)"— Presentation transcript:
1 Blood Components Consists of: A.) Plasma (55% of the blood) Is a clear, slightly yellow liquid is 92% water and therefore is an aqueous solution containing dissolved glucose, vitamins, minerals, nutrients and a variety of proteins
2 B.) Cells (45% of the blood) ii.) WBCs (white blood cells) i.) RBCs (red blood cells)ii.) WBCs (white blood cells)iii.) platelets
3 I.) Erythrocytes (RBC) are round disks that are concave on both sides contain no nucleus at maturityare produced by red bone marrow every 120 dayscontain the protein hemoglobin which is an iron based molecule and carries oxygen
5 II: Leucocytes (WBC) life span 3-4 days primary function is as defense cellsless numerous, ratio of RBC:WBC is 770:1are of two principle typesa) granular (70%) (have multi-lobed nuclei) andcontain granules within the cytoplastmTypes: I. neutrophils which are phagocytic and ingestbacteria II. eosinophils that are active in response to infections and allergiesIII. basophils that prevent clotting
7 b) nongranular (30%)(have rounded nuclei) which include: I. lymphocytes which have a role in producing antibodies and function in cellular immunityII. monocytes that are phagocytic and ingulf foreign substances· an elevated WBC count is used as an indicator of infection
8 D: Thrombocytes (platelets) are non-nucleated cell fragments approximately 1/3 the size of a RBCthey stick to each other and to the walls of blood vessels at the site of injury and release clotting factors that function in clotting process
12 Transport of Oxygenoxyhemoglobin (hemoglobin bound with oxygen molecules) gives blood the red appearance while reduced hemoglobin (deoxygenated)gives venous blood its darkerappearance. Each RBCcan carry 250millionmolecules of oxygen gas.