Lec. 3 White Blood Cells and Body Resistance to Infection
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Questions and Answers

What is the main function of basophils in the body?

  • Secrete heparin to increase healing processes
  • Secrete immunoglobulin E for immune response
  • Contain plasminogen for blood coagulation
  • Contain histamine for causing inflammation (correct)

Which cell type plays a major role in chronic infections such as Tuberculosis Bacillus TB?

  • Basophils
  • Bursa of fabriceous lymphocytes
  • Monocytes
  • T thymus lymphocytes (correct)

What is the primary function of WBCs in terms of Ameboid motion?

  • Move through tissues (correct)
  • Phagocytize invading organisms
  • Secrete heparin for anticoagulation
  • Squeeze through capillary pores

Which leukocyte type has a kidney-shaped nucleus and is the largest cell in the body?

<p>Monocytes (D)</p> Signup and view all the answers

What is the primary role of granulocytes and monocytes in protecting the body?

<p>Phagocytosis of invading organisms (B)</p> Signup and view all the answers

Where do the majority of lymphocytes arise in the body?

<p>Lymph nodes (B)</p> Signup and view all the answers

What is the primary function of white blood cells?

<p>To combat infectious agents and toxic substances (D)</p> Signup and view all the answers

What is the condition called when the white blood cell count is below the normal range?

<p>Leucopenia (A)</p> Signup and view all the answers

Which of the following is NOT one of the ways white blood cells combat infectious agents?

<p>Producing red blood cells (A)</p> Signup and view all the answers

What is the condition called when the white blood cell count is above the normal range?

<p>Leukocytosis (A)</p> Signup and view all the answers

What is the normal range for white blood cell count?

<p>4,000 - 11,000 cells per cubic millimeter (A)</p> Signup and view all the answers

Where are infectious agents commonly found in the body?

<p>In the skin, mouth, respiratory passageways, intestinal tract, eyes, and urinary tract (D)</p> Signup and view all the answers

Which of the following statements about white blood cells (WBCs) is correct?

<p>They have a nucleus. (C)</p> Signup and view all the answers

What is the primary function of neutrophils?

<p>Phagocytosis and inflammation response. (B)</p> Signup and view all the answers

Which of the following statements about eosinophils is correct?

<p>They are predominant in tissues and involved in detoxification of foreign proteins. (C)</p> Signup and view all the answers

What is the approximate percentage of basophils in the blood?

<p>0.4% (B)</p> Signup and view all the answers

Which of the following statements about monocytes is correct?

<p>They remain in the blood for 24 hours before migrating to tissues. (A)</p> Signup and view all the answers

Which type of white blood cells has a nucleus that takes an 'S' shape?

<p>Basophils (C)</p> Signup and view all the answers

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