Also called ERYTHROCYTES Make of 44% of the 45% “formed” part of blood. Specialized for ____________ transport. Mature cell has no nucleus Packed with respiratory pigment called HEMOGLOBIN: iron-containing molecule that binds with oxygen.
Not cells. Fragments of cells from bone marrow. Important role in clotting blood protection from excessive blood loss after injury. Steps to blood clotting (still not completely understood): Blood vessel broken substances released by broken blood vessels attract platelets platelets rupture and chemicals released thromboplastin (enzyme) is produced reacts with prothrombin to produce thrombin reacts with fibrinogen fibrin. Fibrin: insoluble material that forms a mesh of strands around an area of injury. Traps escaping blood cells!
Medium in which blood cells/platelets are suspended Contains dissolved proteins which are important to all blood functions: Red blood cell processes White blood cell processes Platelet processes, Etc.
Read “Human Blood Groups” (page 300) and make detailed notes. Complete the following SR questions (page 303) #1, 2, 4, 8, 9, 11.