BIO 126 Lecture Notes - Lecture 10: Sinus Venosus, Pulmonary Valve, Tricuspid Valve
17 Apr 2016
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Document Summary
Regulation- nutrients, ions, hormones, heat (thermoregulation), are carried and regulated by blood. Protection- coagulation (prevention from bleeding out), infection prevention by white blood cells. It contains the following solutes: nutrients, wastes, and hormones, ions, proteins. Hematocrit is the fraction of the total blood volume occupied by red blood cells. Rbcs of vertebrates contain hemoglobin: pigment that binds and transports oxygen. Can migrate out of capillaries into tissue fluid. Neutrophils, eosinophils, and basophils: agranular leukocytes: Albumin is a general carrier protein, helps transport non soluble hormones, fibrinogens help in clotting, immunoglobulins aka antibodies. Know: erythrocytes are red blood cells everything else is a white blood cell. Cell fragments that pinch off from larger cells in the bone marrow. Coagulation is the formation of a solid clot from liquid blood. A cascade of complex reactions converts inactive fibrinogen to fibrin, which forms the framework of a clot.
