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Blood Basics

Basic facts about blood

QuestionAnswer
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.
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