Chapter 15 Introduction to the Immune Response and Inflammation (RTF354)
Harvard University
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Chapter 15- Introduction to the Immune Response and Inflammation
- Exam (elaborations) • 4 pages • 2021
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Cognitive Level: Knowledge 
Difficulty: Easy 
Integrated Process: Nursing process 
1.Which of the following is considered the body's first line of barrier defense? 
A) Mast cells 
B) Mucous membranes 
C) Skin 
D) T cells 
Ans: C 
Response: 
The skin is the first line of barrier defense. The skin acts as a physical barrier to 
protect the internal tissues and organs of the body. Mast cells are part of cellular 
defense; they are found in the respiratory and gastrointestinal tracts and are fixed ...
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