Hematology Definitions Flashcards
Cell Nucleus
Regulates cell function, contains DNA, nuclear membrane
Mitochondria
Provides energy, rod-shaped organelle with 2 layers
Cell Membrane
Selective permeability, transport, and provides stability, recognition of foreign substances
Lysosome
Membrane bound sac that contains hydrolytic enzyes that degrade phagocytized materials
RER
Interconnecting membrane-bound tubules and vesicles, ribosomes on surface, synthesis of proteins
Golgi Apparatus
Flattened sacs, often curved and arranged in parallel arrays, assembly of polypeptides into proteins, packaged and released into cytoplasm
RBC
Carries O2 to tissues and CO2 away
Platelet
Clotting mechanism
Neutrophils
Responds to infections (bacterial), foreign bodies, phagocytosis
Lymphocytes
Antibody production
Monocytes
Phagocytosis, presents foreign antigens to lymphocytes
Eosinophils
Phagocytosis, destruction of parasites, inactivation of substances
Basophils
Phagocytosis, cell mediated hypersensitivity reactions, local inflammatory response, anaphylasis
EDTA
Ethylene Diamine Tetra Acetic Acid
Chelates Calcium
Serum
Fluid left when blood is clotted, no fibrinogen present
Plasma
Fluid when blood is not clotted, contains fibrinogen
Present in lavender top tube