18 Questions
What is the primary function of basophils?
Releasing histamine and containing receptors for IgE
What is the primary role of lymphocytes in the body?
Providing chronic immunity against infections
Which of the following is NOT a property of white blood cells (WBCs)?
Erythropoiesis
What is the function of heparin in basophils?
Increase healing processes
Which of the following is a type of agranular leukocyte?
Monocyte
What is the primary role of granulocytes and monocytes in the body?
Ingesting and destroying invading organisms through phagocytosis
Which of the following statements about white blood cells is correct?
They are responsible for fighting infections and toxic agents in the body.
What is the condition called when the white blood cell count is lower than normal?
Leukopenia
Which of the following is NOT a location where infectious agents can normally be found in the body?
Bone marrow
What is the process by which white blood cells destroy invading bacteria or viruses?
Both phagocytosis and antibody/lymphocyte production
Which of the following conditions is characterized by an abnormally high white blood cell count?
Leukocytosis
What is the normal range for white blood cell count in a healthy individual?
4,000 - 11,000 cells per cubic millimeter
Which of the following is a function of neutrophils?
Phagocytosis and inflammation response
What is the typical percentage range of neutrophils in the body?
50-70%
Which type of white blood cell has a multilobed nucleus that typically takes an 'S' shape?
Basophils
What is the plasma half-life of neutrophils?
10-20 hours
Which type of white blood cell remains in the blood for 24 hours before migrating to tissues?
Monocytes
What is the primary function of eosinophils?
Both b and c
Explore the concept of the body's resistance to infections, including how white blood cells play a crucial role in defending against bacteria, viruses, fungi, and parasites. Learn about the mechanisms that prevent infectious agents from invading deeper tissues.
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