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Lec. 3 White Blood Cells and Body Resistance to Infection

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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?

Monocytes Signup and view all the answers

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

Phagocytosis of invading organisms Signup and view all the answers

Where do the majority of lymphocytes arise in the body?

Lymph nodes Signup and view all the answers

What is the primary function of white blood cells?

To combat infectious agents and toxic substances Signup and view all the answers

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

Leucopenia Signup and view all the answers

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

Producing red blood cells Signup and view all the answers

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

Leukocytosis Signup and view all the answers

What is the normal range for white blood cell count?

4,000 - 11,000 cells per cubic millimeter Signup and view all the answers

Where are infectious agents commonly found in the body?

In the skin, mouth, respiratory passageways, intestinal tract, eyes, and urinary tract Signup and view all the answers

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

They have a nucleus. Signup and view all the answers

What is the primary function of neutrophils?

Phagocytosis and inflammation response. Signup and view all the answers

Which of the following statements about eosinophils is correct?

They are predominant in tissues and involved in detoxification of foreign proteins. Signup and view all the answers

What is the approximate percentage of basophils in the blood?

0.4% Signup and view all the answers

Which of the following statements about monocytes is correct?

They remain in the blood for 24 hours before migrating to tissues. Signup and view all the answers

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

Basophils Signup and view all the answers