Influenza B virus is the only species in Betainfluenzavirus genus. Infects humans, ferrets, pigs, and seals. Mutates 2-3 times slower than influenza A virus. Has 500 surface projections made of hemagglutinin and neuraminidase
Perfusion refers to fluid passage through circulatory system to organs. Measured as blood flow rate per unit tissue mass (ml/min/g). All animal tissues require adequate blood supply for health
Vertebrate circulatory system includes heart, blood vessels, and blood. System has two main circuits: pulmonary and systemic. Blood contains plasma, red blood cells, white blood cells, and platelets. Average adult contains 4.7-5.7 liters of blood
Blood plasma is a light amber-colored liquid containing proteins and other blood constituents. Makes up about 55% of total blood volume and is 95% water. Contains proteins, glucose, clotting factors, electrolytes, hormones, and oxygen. Has a density of approximately 1,025 kg/m³
Prostaglandins are hormone-like lipid compounds found in almost every tissue. They are derived from arachidonic acid and contain 20 carbon atoms. Prostaglandins act as autocrine or paracrine factors with local target cells
Rh blood group contains proteins on red blood cell surface. System consists of over 50 antigens, with D, C, c, E, and e being most prominent. Rh(D) status described as positive (+) or negative (-) after ABO type. Two main nomenclature systems exist: Fisher-Race (CDE) and Wiener (Rh-Hr)