click below
click below
Normal Size Small Size show me how
Chapter 17 & 18
Blood & Heart
Question | Answer |
---|---|
COMPONENTS OF BLOOD | 1.Plasma (fluid)2.Formed Element (Erythrocytes [RBC] &Leukocytes [WBC]3. Platelets |
HEMATOCRITS: % OF RBC IN WHOLE BLOOD 45% | (a) Average values- male=47%; female=42%(b) Abnormal Values (1) Anemia: decreased hematocrit (2) Polycythemia: increased hematocrit |
Physical Characteristice & Volume | 1. pH: 7.35-7.452. Volume: 5-6L= 8% of body Weight3. Color: Scarlet (oxygenated) dark red (deoxygenated) |
Major Functions | 1. Distribution2. Regulation3. Protection |
Distribution (Blood) | a. Respiration: O2 to cells from lungs; CO2 to lungs from cellsb. Metabolic waste products: from cells to lungs & kidneysc. Internal Communication: Hormones |
Regulation (Blood) | a. Thermoregulataion: high specific heatb. Acid-Base balance: maintain body pH & alkaline reserve [bicarbonate ion= HCO3c. Fluid-electrolyte balance: adequate fluid volume. |
Protection (Blood) | a. Prevent blood loss: Coagulationb. Prevent Infection: Immune defense: Antigen (ag)-antibody; (Ab) interations. |