Which of the following are part of the first line of defense against invaders: (select all that apply)
Neutrophils
Inflammation
Tears
Saliva
Correct Answer : C,D
A. Neutrophils are part of the second line of defense, not the first. They are white blood cells that respond to infection by phagocytosing pathogens after they have entered the body.
B. Inflammation is part of the second line of defense. It is an immune response that occurs after a pathogen has breached the body's barriers.
C. Tears are part of the first line of defense. They contain enzymes like lysozyme that help wash away and destroy pathogens on the surface of the eye.
D. Saliva is part of the first line of defense. It contains enzymes and antimicrobial substances that help neutralize and flush out pathogens from the mouth.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Lymph nodes are secondary lymphoid organs where B and T cells can be activated, but they are not the cells themselves.
B. Tonsils are lymphoid tissues that help protect against pathogens, but they are not the cells themselves.
C. Lymphocytes are the correct answer. B cells and T cells are types of lymphocytes, which are white blood cells involved in the adaptive immune response.
D. Antibodies are proteins produced by B cells (specifically plasma cells) in response to pathogens, but they are not cells themselves.
Correct Answer is C
Explanation
A. Lung contains alveolar macrophages (dust cells), not Kupffer cells.
B. Spleen contains various types of immune cells, but Kupffer cells are not found here.
C. Kupffer cells are specialized macrophages located in the liver. They play a role in filtering blood and removing pathogens, debris, and worn-out blood cells.
D. Tonsils contain lymphocytes and other immune cells, but Kupffer cells are not found in the tonsils.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.