37 Questions
Which component makes up 44% of the centrifuged blood sample?
Erythrocytes
Which leukocytes are classified as granulocytes?
Neutrophils
What characterizes activated B-cells?
Differentiation into plasma cells
What is the main function of eosinophils?
Release of histamine
Which leukocytes are classified as non-phagocytes?
Basophils
What is the composition of the middle gray-white layer in a centrifuged blood sample?
Leukocytes and platelets
What is the percentage of granulocytes in normal peripheral blood?
65%
Which type of infections is associated with increased neutrophil count (neutrophilia)?
Bacterial infections
What is the primary function of eosinophils?
Attacking parasites
Which cells primarily release histamine and other chemicals involved in allergic reactions?
Basophils
What is the main function of innate defenses in immunity?
Resisting damaging organisms and toxins
Where do B lymphocytes primarily originate?
Bone marrow
What is the function of activated B lymphocytes in the immune response?
Secreting antibodies
Which type of immunoglobulin is responsible for allergic reactions and histamine release?
IgE
What is the function of basophils in the immune response?
Releasing histamine and other mediators of inflammation
Which leukocytes are involved in the adaptive immune response?
Lymphocytes
What is the main function of natural killer cells in the immune system?
Killing virus-infected and tumor cells
Which leukocyte population is primarily responsible for engulfing and destroying pathogens by phagocytosis?
Neutrophils
What is the primary role of monocytes in the immune system?
Differentiating into macrophages and dendritic cells to phagocytose pathogens and present antigens
Which leukocyte population is primarily responsible for combating parasitic infections?
Eosinophils
What characterizes activated T-cells in the immune response?
Receiving signals from antigen-presenting cells to proliferate and produce cytokines
What is the primary function of dendritic cells in the immune system?
Presenting antigens to activate other immune cells
What is the main function of plasma cells in the immune response?
Producing antibodies to neutralize pathogens
Which leukocyte population is primarily responsible for promoting inflammation by releasing histamine and other mediators?
Basophils
What is the primary function of macrophages in the immune system?
Phagocytosing pathogens and presenting antigens to activate other immune cells
What is the primary function of neutrophils in the immune system?
Engulfing and destroying pathogens by phagocytosis
Which leukocyte population is primarily responsible for combating viral infections?
Natural killer cells
What is the main function of plasma cells in the immune response?
Producing antibodies specific to antigens
Which leukocytes are classified as agranulocytes?
Lymphocytes
What is the primary function of dendritic cells in the immune system?
Presenting antigens to T-lymphocytes to initiate adaptive immune responses
Which component makes up the majority of the centrifuged blood sample?
Plasma
What is the primary role of monocytes in the immune system?
Engulfing and destroying pathogens by phagocytosis
What is the main function of eosinophils?
Releasing histamine and other chemicals involved in allergic reactions
What characterizes activated B-cells?
Releasing antibodies to neutralize antigens
Where do B lymphocytes primarily originate?
Bone marrow
What is the main function of macrophages in the immune system?
Engulfing and destroying pathogens by phagocytosis
What is the primary function of innate defenses in immunity?
Recognizing and responding rapidly to a wide variety of pathogens
Explore the composition of blood, differentiate between granulocytes and non-granulocytes, polymorphonuclear and mononuclear leukocytes, and phagocytes and non-phagocytes. Learn about leukopoiesis and the formation of blood cells in this comprehensive quiz.
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