Anatomy Flashcards: Blood Cells
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Questions and Answers

What is the most numerous leukocyte?

neutrophil

Which of the following are granular leukocytes? (Select all that apply)

  • Lymphocyte
  • Neutrophil (correct)
  • Basophil (correct)
  • Eosinophil (correct)

    • What is another name for an erythrocyte?

    red blood cell

    Which leukocytes are actively phagocytic?

    <p>Monocyte</p> Signup and view all the answers

    Which leukocytes are considered agranular?

    <p>Lymphocyte</p> Signup and view all the answers

    What fragments to form platelets?

    <p>megakaryocyte</p> Signup and view all the answers

    What leukocyte increases during allergic reactions?

    <p>eosinophil</p> Signup and view all the answers

    Which leukocyte releases histamine during inflammatory reactions?

    <p>basophil</p> Signup and view all the answers

    What type of leukocyte may be formed in lymphoid tissue after originating in bone marrow?

    <p>lymphocyte</p> Signup and view all the answers

    Which blood cell contains hemoglobin?

    <p>red blood cell</p> Signup and view all the answers

    What is the primary fluid matrix of blood?

    <p>plasma</p> Signup and view all the answers

    What is the least numerous leukocyte?

    <p>basophil</p> Signup and view all the answers

    What are white blood cells also called?

    <p>Leukocytes</p> Signup and view all the answers

    White blood cells move into and out of blood vessels by the process of positive chemotaxis.

    <p>False</p> Signup and view all the answers

    An abnormal decrease in the number of white blood cells is leukopenia.

    <p>True</p> Signup and view all the answers

    The normal pH range of blood is 7.00-7.45.

    <p>False</p> Signup and view all the answers

    The cardiovascular system of an average adult contains approximately 4 liters of blood.

    <p>False</p> Signup and view all the answers

    An abnormal increase in the number of white blood cells is leukocytosis.

    <p>True</p> Signup and view all the answers

    The primary function of erythrocytes is to carry oxygen.

    <p>True</p> Signup and view all the answers

    Which of the following are considered granulocytes?

    <p>Neutrophils</p> Signup and view all the answers

    What leukocyte plays an important role in the immune response?

    <p>lymphocytes</p> Signup and view all the answers

    What type of white blood cells are eosinophils particularly important for?

    <p>killing parasites</p> Signup and view all the answers

    A decrease in the ability of the blood to carry oxygen is known as _____

    <p>anemia</p> Signup and view all the answers

    The buffy coat is made up of _____

    <p>leukocytes and platelets</p> Signup and view all the answers

    What is the only white blood cell type to arise from lymphoid stem cells?

    <p>Lymphocyte</p> Signup and view all the answers

    What process do white blood cells use to move in and out of blood vessels?

    <p>diapedesis</p> Signup and view all the answers

    Which cells are considered agranular leukocytes?

    <p>Lymphocytes</p> Signup and view all the answers

    What does leukopenia refer to?

    <p>an abnormal decrease in the number of leukocytes</p> Signup and view all the answers

    Study Notes

    Leukocytes and Their Types

    • Neutrophils are the most numerous leukocytes and function as avid phagocytes.
    • Granular leukocytes include neutrophils, eosinophils, and basophils.
    • Agranular leukocytes consist of lymphocytes and monocytes.
    • Monocytes and eosinophils are actively phagocytic leukocytes.
    • Eosinophils increase in number during allergic reactions and are important for killing parasites.
    • Basophils release histamine in inflammatory responses and are the least numerous leukocytes.

    Blood Components

    • Red blood cells, also known as erythrocytes, are anucleate biconcave discs that contain hemoglobin, essential for oxygen transport.
    • Platelets are cell fragments derived from megakaryocytes, which pinch off thousands of these fragments.
    • Plasma, the noncellular fluid matrix of blood, is primarily composed of water.

    Blood Cell Functions and Characteristics

    • Lymphocytes play a vital role in the immune response and are found in lymphoid tissue, arising from lymphoid stem cells.
    • Leukopenia refers to an abnormal decrease in white blood cells, while leukocytosis indicates an abnormal increase.
    • Anemia is characterized by a decreased ability of blood to carry oxygen, resulting from a reduced number of red blood cells.

    Blood Parameters and Health

    • The normal pH range of blood is 7.35 to 7.45.
    • The average adult has approximately 5.5 liters of blood.
    • A decrease in red blood cell count can lead to less viscous blood, contrary to earlier assumptions.
    • Hematocrit is the term used to describe the proportion of blood volume that is occupied by red blood cells.

    Misconceptions and Clarifications

    • Diapedesis is the process through which white blood cells move in and out of blood vessels.
    • False statements concerning blood parameters include the normal red blood cell count being 4.5 to 5.5 million and the normal hemoglobin values concerning hematocrit percentage.

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    Description

    Test your knowledge on the different types of blood cells with these anatomy flashcards. Learn about leukocytes, erythrocytes, and their classifications and functions. Perfect for students studying anatomy and biology.

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