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55 terms

Blood

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Formed elements consist of what three main parts?
Red blood cell, white blood cells, and platelets
What is the most common plasma protein?
Albumins
What is another name for thrombocyte?
Platelets
What is the most common blood cell?
Red blood cells
What is another name for a white blood cell?
What is another name for a white blood cell?
What white blood cell is the most common in a normal blood sample?
neutrophils
How many red blood cells are normally found per cubic millimeter of blood?
5 million
What is the average number of white blood cells found per cubic millimeter of blood?
7,000
B cells and T cells belong to what class of agranular leukocyte?
Lymphocyte
What value is there to a change in the percentage of white blood cells to diagnostic medicine?
represents disease
What is the function of the platelet?
blood clotting
Formed elements constitute what percentage of the total blood volume?
45%
In terms of volume, does the blood normally contain more plasma or more formed elements?
Plasma
What is the name of a surface membrane molecule on a blood cell that causes an immune reaction?
Glycoprotein
What ABO blood type is found in a person who is a universal donor?
O blood
What is the average range of hematocrit for a normal female?
38% - 48%
What is the average range of hematocrit for a normal male?
44% - 54%
A person with blood type B has what kind of agglutinins (antibodies)?
Anti - A
A person has antibody A and antibody B in his or her blood with no Rh antibody. What blood type does this person have?
Type O
Define anemia
When blood is lost faster than it is replaced or when the production of red blood cells is low
What are the basic components of blood?
Plasma and blood cells
What are the basic components of plasma?
What are the basic components of plasma?
What are the plasma proteins?
Lipoproteins, antibodies, and albumin
Which plasma protein is the most abundant?
Albumin
What do neutrophils represent?
Bacterial infection
What do lymphocytes represent?
Viral infections
What do monocytes represent?
Chronic infections
What do eosinophils represent?
Allergies and worms
What do basophils represent?
Allergies
What is the "Total WBC count"?
The total number of white blood cells in a sample
What is plasma?
The fluid portion of blood and is about 91% water
What two plasma cells are produced by the liver?
Albumin and fibrinogen
What is another name for red blood cells?
Erythrocytes
What does the biconcave shape of red blood cells do for its function?
Increases area surface and provides for greater oxygen-carrying capabilities
What is blood formation referred to as?
Hematopoiesis or Hemopoiesis
Define erythropoiesis.
The specific production of red blood cells
What is the life span of red blood cells?
120 days
Which organs break down red blood cells?
Spleen or liver
Where are white blood cells formed?
Bone marrow tissue
What two groups can white blood cells be divided into?
Granular & Agranular Leukocytes
What white blood cells are categorized as being granular leukocytes?
Neutrophils, Eosinophils &Basophils
What white blood cells are categorized as being agranular leukocytes?
Lymphocytes &Monocytes
Describe the general features of red blood cells.
No nucleus and numerous
Describe the general features of Neutrophils.
3 to 5 lobed nucleus
Describe the general features of Basophils.
S-shaped nucleus; dark purple granules
Describe the general features of Eosinophils.
2 lobed nucleus; orange cytoplasmic granules
Describe the general features of lymphocytes.
Blue cytoplasm, frequently forming a halo around nucleus
Describe the general features of Monocytes.
Large cell with kidney shaped or horseshoe-shaped nucleus
Describe the general features of platelets.
Small, purple fragments
What occurs in antibody-meditated immunity?
Plasma cells secrete antibodies that travel in the fluid portion of the blood
What occurs in cell-meditated immunity?
The cells themselves move close to and destroy some types of bacteria or virus-infected cells
Define Differential WBC count.
Changes in the relative percentages of white blood cells
Define Hematocrit.
(packed cell volume); the percentage of red blood cells (or blood cells in general) in the total blood volume
Define plycythemia.
An increase in the hematocrit above normal
Define hemoglobin
A complex molecule composed of an iron-containing heme group and the protein globin