BIOC21H3 Study Guide - Mast Cell, Metallo, White Blood Cell
16 Sep 2012
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Biconcave disk (allows for flexibility and maximize sa for gas exchange) Large, eccentric, light- staining (pale) nucleus (often horseshoe or kidney bean shaped) Cell size determined by amount of cytoplasm. Megakaryocytes (large, multinucleated cells with larger amount of cytoplasm) in bone marrow. Contain enzymes including lysozymes, lactoferrin, myelo- peroxidase, and metallo- proteases. Stores glycogen and uses glycolysis for energy. Transport o2 to cells and tissues (contain hemoglobin. When activated, cytoplasm accumulates and cell size increases surface immune- globulins . They mediate inflammation and are often used to modulate the activity of mast cells. Capable of recirculating; can enter cts or lymphatic vessels. Chromomere: dense- colored granules: serotonin (vasoconstrictor) and histamine (vasodilator, alpha granules: includes fibrinogens that help with clotting and marrow b- lymphocyte (5%) when activated differentiates into plasma cell and produce antibodies, thymus . T-lymphocyte (90%: natural killer lymphocyte (5%) slightly bigger, more cytoplasm with more granules; attack certain tumours and viral infected cells.
