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Melanie Grayson
Physiology Weeks 7 - 13
Term | Definition |
---|---|
B Cells | Antibody -meditated immunity; produce antibodies that attack pathogens |
T Cells | Attack pathogens more directly - classified as cell mediated immunity |
Lipases | Enzymes that digest emulsified fats |
Amylase | Enzyme that digests startches |
Conduction System of the Heart | Composed of four major structures: Sinoatrial (SA) node Atrioventricular (AV) node AV bundle (bundle of His) Subendocardial branches (Purkinje fibers) |
Tricuspid valve (right AV valve) | Guards the right atrioventricular orifice; free edges of three flaps of endocardium are attached to papillary muscles by chordae tendineae |
Bicuspid Valve (left AV valve) | Similar in structure to tricuspid valve except only has two flaps |
Hematopoiesis | Formation of new blood cells |
Myeloid Tissue (red bone marrow) | Forms all blood cells except some lymphocytes; found within the bones |
Lymphoid Tissue | Forms additional white blood cells in the lymph nodes, thymus and spleen. |