What structure is concerned with the processing and maturing of T lymphocytes?
Spleen
Thymus gland
Tonsils
Pancreas
The Correct Answer is B
A. Spleen:
The spleen filters blood and helps initiate immune responses, but it does not mature T cells.
B. Thymus gland:
The thymus is the primary site where immature T lymphocytes mature and become functional.
C. Tonsils:
Tonsils help detect pathogens entering through the mouth or nose but are not involved in T cell maturation.
D. Pancreas:
The pancreas is involved in digestion and blood glucose regulation, not immune cell development.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Anaphylaxis (hypersensitivity reaction)
Anaphylaxis is a life-threatening allergic reaction involving airway constriction, drop in blood pressure, and widespread inflammation.
B. Immunosuppression
Immunosuppression is a reduced immune response, not a hypersensitivity reaction.
C. Immunocompetence
This is the normal functioning of the immune system, not a reaction.
D. Autoimmunity
Autoimmunity is when the body attacks its own tissues, not an allergic reaction.
Correct Answer is C
Explanation
A. Red, like blood:
Lymph is typically clear to pale yellow; it lacks red blood cells, which give blood its red color.
B. Formed when fluid is filtered across the subclavian veins into the tissue spaces:
Lymph forms from interstitial (tissue) fluid, not from fluid filtered from veins into tissues.
C. Formed from tissue fluid:
Lymph originates as interstitial fluid that enters lymphatic vessels and is transported back into the circulatory system.
D. Pumped by the left heart into systemic circulation:
Lymph is not pumped by the heart; it moves through the lymphatic system via muscle contractions and valves.
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