Lymph from which of the following parts of the body does not enter into the systemic circulation through the thoracic duct?
Lymph from the lower body
Lymph from the left side of the head
Lymph from the right arm
Lymph from the left arm.
The Correct Answer is C
A. Lymph from the lower body drains into the thoracic duct.
B. Lymph from the left side of the head drains into the thoracic duct as well, which eventually empties into the systemic circulation.
C. Lymph from the right arm does not enter the thoracic duct. It drains into the right lymphatic duct, which then empties into the systemic circulation.
D. Lymph from the left arm drains into the thoracic duct along with lymph from other parts of the body.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["C","D"]
Explanation
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.
Correct Answer is B
Explanation
A. GALT (Gut-Associated Lymphoid Tissue) refers to lymphoid tissue found in the gastrointestinal tract, not a part of the lymph node.
B. The hilum is the indented area of a lymph node where blood vessels, nerves, and efferent lymphatic vessels (which carry lymph out of the node) exit the node.
C. Buboes are swollen lymph nodes, often a sign of infection like bubonic plague, not the area where vessels exit the lymph node.
D. Filariae are parasitic worms that can cause lymphatic filariasis, but they are not related to the structure of a lymph node.
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