BIO 106 Lecture Notes - Lecture 12: Fetus, Fibrinogen, Blood Donation
Document Summary
Large nucleus taking up most of cytoplasm. Develops into b and t cells important to the immune system - almost as common as neutrophils. Largest white blood cells, horseshoe shaped nucleus. Resides in tissues and develop into macrophages. Upon infection, moves out of circulation into tissues to engulf pathogens by phagocytosis. Many large granules function in parasitic infections and play a role in allergies. Seven types of blood cells able to fight infections. White blood cells are necessary everywhere in the body. White blood cells use diapause/emigration to move out of vessels and move into certain areas where they are needed. Individuals have hard time fighting off infections. Inherited disease in which stem cells of white blood cells lack an enzyme. Group of cancers affecting white blood bells in which cells proliferate without control. Occurs when epstein-barr virus (ebv) infects lymphocytes. Incites fatigue, sore throat, swollen lymph nodes. Result in fragmentation of megakaryocytes in red bone marrow.
