Lymph fluid is:
Red, like blood
Formed when fluid is filtered across the subclavian veins into the tissue spaces
Formed from tissue fluid
Pumped by the left heart into systemic circulation
The Correct Answer is C
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Cause mycotic infections:
Mycotic (fungal) infections are caused by fungi, not bacteria.
B. Include mold and yeast:
Molds and yeasts are fungi, not bacteria.
C. Are not part of the normal flora of the intestines:
Bacteria are a significant part of the normal intestinal flora (e.g., E. coli, Bacteroides).
D. Include cocci, bacilli, and curved rods:
Bacteria are classified by shape: cocci (spherical), bacilli (rod-shaped), and curved rods (e.g., Vibrio cholerae).
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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