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Blood Basics
Basic facts about blood
| Question | Answer |
|---|---|
| Where does blood come from? | The stem cells of bone marrow. |
| How much blood does the average adult have? | 5-6 liters |
| True or False; Blood has two parts. | True; Plasma & The Formed Elements |
| What Is the liquid part of blood called? | Plasma |
| What is the cellular part of blood called? | The formed elements. |
| What is the percentage of plasma in blood? | 55% |
| 45% of blood consists of..... | The formed elements. |
| Plasma consists of... | Gases, amino acids, sugars, h2o, hormones, vitamens, minerals, protiens, electrolytes & urea. |
| What are the formed elements? | Erythrocytes, Leukocytes, & Thrombocytes |
| Red Blood Cells are called? | Erythrocytes |
| Platelets are known as... | Thrombocytes |
| White Blood Cells are called? | Leukocytes |
| What is hemoglobin? | An oxygen carrying protein. |
| Which formed element contains hemoglobin? | Erythrocytes |
| Before the erthrocyte matures, it enters the blood as? | An immature reticulocyte. |
| How long does it take an immature reticulocyte to mature into an erythocyte? | About 1-2 days. |
| How many erythrocytes are there per micro liter of blood in an adult? | 4.2 to 6.2 million |
| 120 days is the normal life span of which formed element. | Erythrocytes |
| What is the main function of a Leukocytes? | To provide the body protection against infections. |
| Leukocytes are also known as? | White blood cells. |
| For an adult, how many white blood cells are there per micro liter of blood? | 5,000 to 10,000 |
| What is Leukocytosis? | An increase in white blood cells; as seen in infections & leukemia. |
| A decrease in white blood cells is known as? | Leukopenia; seen in cases of viral infections & chemotherapy. |
| Thrombocytes are also called? | Platelets |
| Thrombocytes are small irregular shaped packets of? | Cytoplasm |
| Platelets are formed in the bone marrow from? | Megakaryocytes |
| What are Thrombocytes essential for? | Blood coagulation |
| What is blood coagulation? | Blood clotting |
| The average number of platelets is? | 140,000 to 440,000 per micro liter of blood. |
| Which formed element has a life span of 9 to 12 days? | Thrombocytes |
| How many types of white blood cells are there? | Five |
| Name the different types of Leukocytes. | Neutrophils, Lymphocytes, Monocytes, Eosinophils, & Basophils |
| The most numerous white blood cell comprising 40-60% of the population is? | Neutrophils |
| What are phagocytic cells? | Cells that engulf and digest bacteria. |
| Which white blood cell is phagocytic? | Neutrophils |
| This white blood cell is often the first to appear on the scene. | Neutrophils |
| Neutrophils numbers increase in what type of infection? | Bacterial Infection |
| Lymphocytes, the second most numerous white blood cell comprise what percentage of the WBC population? | 20 to 40% |
| Which white blood cell plays a roll in immunity? | Lymphocytes |
| This white blood cells number increases in viral infections. | Lymphocytes |
| A white blood cell that accounts for 0-1% of the population. | Basophils |
| This white blood cell carries a histamine that is released in allergic reactions. | Basophils |
| Eosinophils are active against... | Anti-body labeled foreign molecules. |
| Eosinophils represent what percent of the white blood cell population? | 1-3% |
| Eosinophlis numbers are increased in.... | Allergies, skin infections, and parasitic infections. |
| They are monocytes while circulating in the blood, once it passes into tissue they transform into.... | Macrophages and become powerful phagocytes. |
| The largest white blood cell. | Monocytes |
| Monocytes percentage in the white blood cells. | 3-8% |
| The smallest formed element. | Platelets |
| Monocytes numbers increase in what type of infections? | Intracellular infections & tuberculosis. |