18 Questions
What is the second line of defense against pathogenic microorganisms?
Neutrophils and macrophages
Which major response is part of the second line of defense?
Phagocytosis
Which type of white blood cells perform phagocytosis?
Neutrophils, macrophages, and dendritic cells
What is the most abundant type of white blood cells?
Neutrophils
What is the process through which some specific types of WBCs take in and digest foreign particles or microorganisms?
Phagocytosis
How do neutrophils recognize and kill pathogens?
Phagocytosis or direct killing
What type of WBCs are specially adapted to phagocytize bacteria?
Neutrophils
What is the nucleus shape of mature neutrophils?
Multi-lobed (3-5 lobed)
Where do the majority of mature neutrophils migrate after maturation?
From the blood into the tissues
What is the primary function of the second line of defense in our body?
Recognizing and killing pathogens
Which type of cells are specially adapted to phagocytize bacteria?
Monocytes
What is the shape of the nucleus of mature neutrophils?
Multi-lobed
Which major response involves the process of some specific types of WBCs taking in and digesting foreign particles or microorganisms?
Phagocytosis
Where do the majority of mature neutrophils migrate after maturation?
Tissues
What is the first line of defense against pathogenic microorganisms?
Skin and mucous membranes
Which cells are non-specific in nature and comprised of a wide variety of white blood cells and defensive proteins?
Leukocytes
What are the primary cells involved in cytotoxicity during the second line of defense?
Lymphocytes
Which response is associated with an increase in body temperature to combat infections?
Fever
Explore the second line of defense in the human body against pathogenic microorganisms, which involves non-specific responses such as phagocytosis, cytotoxicity, inflammation, and fever. Learn about the role of white blood cells and defensive proteins in combating infections.
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