Questions and Answers
What makes up blood?
plasma and formed elements
What are the formed elements?
erythrocytes, leukocytes, and platelets
What are erythrocytes?
red blood cells
What are leukocytes?
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Blood makes up what percent of body weight?
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Plasma is about what percent water?
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Plasma makes up about what percent of blood volume?
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How long do most formed elements survive in the bloodstream for?
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What are the most numerous WBCs?
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What are the rarest WBCs?
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Where are lymphocytes mostly found?
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What are the largest leukocytes?
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What are four leukocyte disorders?
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Which leukocyte disorder is due to abnormally low WBC counts and is usually drug-induced (from chemo)?
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Which leukocyte disorder is cancerous and involves WBCs?
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Which leukocyte disorder involves blast-type cells and primarily affects children?
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Which leukocyte disorder is more prevalent in older people?
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Bone marrow totally occupied with cancerous leukocytes?
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What results in nonfunctional WBCs in the bloodstream?
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What causes death by internal hemorrhage and overwhelming infections?
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Study Notes
Components of Blood
- Blood is composed of plasma and formed elements.
- Formed elements include erythrocytes (red blood cells), leukocytes (white blood cells), and platelets.
Blood Characteristics
- Blood constitutes approximately 8% of total body weight.
- Plasma consists of about 90% water and makes up roughly 55% of blood volume.
Lifespan of Formed Elements
- Most formed elements survive in the bloodstream for only a few days.
White Blood Cells (WBCs)
- Neutrophils are the most numerous type of white blood cells.
- Basophils are the rarest type of white blood cells.
- Lymphocytes are primarily located in lymphoid tissue, with only a few found in blood.
- Monocytes are the largest type of leukocytes.
Disorders of Leukocytes
- Common leukocyte disorders include leukopenia, leukemia, acute leukemia, and chronic leukemia.
- Leukopenia: Characterized by abnormally low WBC counts, often drug-induced (e.g., due to chemotherapy).
- Leukemia: A cancerous condition involving white blood cells, leading to the overproduction of nonfunctional WBCs.
- Acute Leukemia: Affects primarily children and involves blast-type cells.
- Chronic Leukemia: More prevalent in older individuals.
Leukemia's Impact
- In leukemia, the bone marrow is often completely occupied by cancerous leukocytes.
- Death from leukemia can result from internal hemorrhage or overwhelming infections.
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Description
Test your knowledge on the components and functions of blood with this flashcard quiz based on Chapter 17 of Anatomy and Physiology. Explore key concepts such as plasma, formed elements, and the percentage of body weight that blood represents. Perfect for students looking to reinforce their understanding of hematology.
