Cervical lymph nodes filter lymph draining from what region?
Abdominal viscera
Upper limb and mammary gland
Thoracic viscera
Scalp and face
The Correct Answer is D
A. Abdominal viscera: abdominal viscera are drained by mesenteric and lumbar nodes, not cervical nodes.
B. Upper limb and mammary gland: the axillary lymph nodes primarily drain the upper limb and breast.
C. Thoracic viscera: mediastinal and tracheobronchial nodes drain thoracic viscera.
D. Scalp and face: cervical lymph nodes drain lymph from the head and neck region, including the scalp and face.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. The presence of antibodies triggers the production of antigens: antibodies are produced in response to antigens, not the other way around.
B. Antibodies can be foreign cells, proteins, or other large molecules. Antigens are large proteins made by B cells: this reverses definitions: antigens are foreign molecules/cells that stimulate immune response; antibodies are proteins produced (by B cells) that bind antigens.
C. Antigens function to destroy or neutralize antibodies: antigens elicit antibody production; they do not act to destroy antibodies.
D. The presence of an antigen triggers the production of antibodies: antigens (foreign proteins, polysaccharides, cells) stimulate B cells to differentiate into plasma cells that produce specific antibodies.
Correct Answer is A
Explanation
A. Radial artery on the wrist: Most commonly palpated peripheral pulse site.
B. Internal jugular vein in the neck: Venous pulsations are observed, not palpated as an arterial pulse.
C. Aorta in the chest: Not a routine palpable site.
D. Subclavian artery in the neck: Deep and not a common palpation site.
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