Blood Constituents
Characteristics Human - about 5-6 L man, 4-5 L woman Consists of – plasma (fluid), about 55% - formed (solid) elements about 45% 1) Red blood cells 2) White blood cells 3) Platelets
Results of Centrifugation (formed elements collect at bottom) (55%) Formed Elements (45%)
FUNCTIONS of PLASMA Yellowish tint, liquid component of blood - 90 % water dissolved substances nutrients (nutrients, antibodies, hormones, waste) transports: nutrients, antibodies, hormones, proteins, cellular waste to excretory organs
Red Blood Cells
Functions of RBC`s Transports carbon dioxide Hemoglobin (in Red Blood Cells) transport of oxygen
WBC`s (White Blood Cells) defense against disease. -neutralize antigens (bacteria, viruses, harmful foreign elements) - rid body of debris, dead or damaged cells
Platelets
Functions of Platelets Irregular fragments of cells(not really cells) Help in blood-clotting
Anemia Disease- lack of oxygen 3 causes: 1. not enough RBC’s 2. not enough hemoglobin in RBC’s 3. Abnormally formed hemoglobin