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Questions and Answers
Plasma is the liquid component of blood, making up 90% of blood.
Plasma is the liquid component of blood, making up 90% of blood.
False (B)
The main function of blood is:
The main function of blood is:
- Coagulation
- Removal of waste
- Oxygen transport (correct)
- Supply of nutrients
The major site for hematopoiesis in an embryo is:
The major site for hematopoiesis in an embryo is:
- Bone marrow
- Liver
- Yolk sac (correct)
- All of the above (correct)
Stem cell is also known as:
Stem cell is also known as:
Formed elements in the blood consist of:
Formed elements in the blood consist of:
In early childhood, the major sites of hematopoiesis are flat bones only (skull, ribs, sternum).
In early childhood, the major sites of hematopoiesis are flat bones only (skull, ribs, sternum).
Extramedullary hematopoiesis happens in the reticuloendothelial system (liver, spleen, lymph nodes).
Extramedullary hematopoiesis happens in the reticuloendothelial system (liver, spleen, lymph nodes).
The factors that cause stem cells to be depleted are:
The factors that cause stem cells to be depleted are:
Proliferation and differentiation are directly influenced and regulated by growth factors.
Proliferation and differentiation are directly influenced and regulated by growth factors.
Erythropoietin is a hormone growth factor which is made by:
Erythropoietin is a hormone growth factor which is made by:
What type of white blood cells have the specific function of fighting parasitic infections?
What type of white blood cells have the specific function of fighting parasitic infections?
What type of blood cells are elevated in allergic reactions?
What type of blood cells are elevated in allergic reactions?
Which is the largest white blood cell?
Which is the largest white blood cell?
Which is the smallest white blood cell?
Which is the smallest white blood cell?
Which of the following is considered a Lymphocyte?
Which of the following is considered a Lymphocyte?
Macrophages that are found in the liver are called:
Macrophages that are found in the liver are called:
B-lymphocytes and T-lymphocytes are functionally similar and morphologically different.
B-lymphocytes and T-lymphocytes are functionally similar and morphologically different.
An increase in neutrophil count is termed neutropenia.
An increase in neutrophil count is termed neutropenia.
Basophils are the most abundant leukocytes.
Basophils are the most abundant leukocytes.
Only bacterial infections cause neutrophilia.
Only bacterial infections cause neutrophilia.
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Study Notes
Blood Composition
- Plasma is the liquid component of blood, making up 90% of blood.
Blood Functions
- The main functions of blood are oxygen transport, supply of nutrients, coagulation, and removal of waste.
Hematopoiesis
- The major site for hematopoiesis in an embryo is the yolk sac.
- In early childhood, hematopoiesis occurs in flat bones (skull, ribs, sternum) and later in life, it occurs in the bone marrow.
- Extramedullary hematopoiesis occurs in the reticuloendothelial system (liver, spleen, lymph nodes).
Stem Cells
- Stem cells are also known as pluripotential cells.
- Factors that cause stem cells to be depleted include ionizing radiation, chemotherapy, and a combination of both.
Formed Elements
- Formed elements in the blood consist of erythrocytes, basophils, and platelets.
Growth Factors
- Growth factors directly influence and regulate proliferation and differentiation of cells.
- Erythropoietin is a hormone growth factor produced by the kidney.
White Blood Cells
- Eosinophils are a type of white blood cell that fights parasitic infections.
- Basophils are elevated in allergic reactions.
- Monocytes are the largest white blood cells.
- Lymphocytes are the smallest white blood cells.
- B-cells, T-cells, and natural killer cells are all types of lymphocytes.
- Macrophages found in the liver are called Kupffer cells.
Neutrophils
- An increase in neutrophil count is termed neutrophilia, not neutropenia.
- Neutrophilia can be caused by bacterial infections, but it is not the only cause.
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