What is the term that refers to the capacity of our bodies to protect against pathogens and other foreign objects?
Defense mechanism
Protection
Infection
Immunity
The Correct Answer is D
A. Defense mechanism:
This is a general term, not specific to the immune system's ability to protect.
B. Protection:
Protection is a vague term and not the technical term used in this context.
C. Infection:
Infection refers to the invasion and multiplication of pathogens, not the body’s ability to fight them.
D. Immunity:
Immunity refers to the body’s specific ability to recognize, resist, and eliminate pathogens and foreign substances.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Infections:
Infections in older adults are often due to immune suppression, not directly from autoantibodies.
B. Cancer:
While aging does increase cancer risk, autoantibodies do not directly cause cancer.
C. Allergic reaction:
Allergies involve hypersensitivity reactions to external antigens, not the body's own cells.
D. Autoimmune disease:
Autoantibodies target the body's own tissues, leading to autoimmune diseases such as rheumatoid arthritis or lupus, which are more common in older adults.
Correct Answer is A
Explanation
A. Tonsils:
Tonsils are lymphatic tissues located in the pharyngeal region; they are partially encapsulated and help trap airborne or ingested pathogens.
B. Thyroid gland:
The thyroid is an endocrine gland that regulates metabolism, not part of the lymphatic system.
C. Thymus gland:
The thymus is fully encapsulated and located in the mediastinum; it matures T cells.
D. Spleen:
The spleen is a fully encapsulated lymphoid organ located in the left upper quadrant of the abdomen.
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