Which of the following drains lymph from the majority of the body and enters into the left subclavian vein?
right lymphatic duct
jugular trunk
subclavian trunk
thoracic duct
The Correct Answer is D
A. Right lymphatic duct: the right lymphatic duct drains only the right upper quadrant (right head/neck, right arm, right thorax), not the majority of the body.
B. Jugular trunk: the jugular trunk drains head/neck regions; it does not itself drain the majority of the body.
C. Subclavian trunk: the subclavian trunk drains upper limbs; it is a trunk, not the single duct that collects most lymph from the body.
D. Thoracic duct: the thoracic duct collects lymph from the lower body, abdomen, left thorax, left head/neck, and left arm (the majority of the body) and empties into the left subclavian vein.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Radial: The radial pulse is palpated at the lateral (thumb) side of the wrist between the tendons of the flexor carpi radialis and the abductor pollicis longus -it is superficial and commonly used clinically, so this is the correct pulse for a wrist/forearm highlighted area.
B. Ulnar: The ulnar pulse lies on the medial (pinky) side of the wrist and is deeper and often harder to palpate than the radial; it would not be the best choice if the highlighted area is lateral at the thumb side.
C. Brachial: The brachial pulse is felt on the medial aspect of the arm (at the antecubital fossa or just medial to the biceps tendon) and is used for infants or blood pressure -it is not located at the distal wrist.
D. Dorsalis pedis: The dorsalis pedis pulse is on the dorsum of the foot (between the tendons over the instep) and is unrelated to a wrist/forearm highlighting.
Correct Answer is ["A","C"]
Explanation
A. heart: Has atrioventricular (mitral/tricuspid) and semilunar (aortic/pulmonic) valves.
B. arteries: Systemic arteries generally lack valves (the aortic/pulmonic “valves” are cardiac valves at the heart outflow, not within the arterial tree).
C. veins: Especially in limbs; valves prevent backflow and aid venous return.
D. capillaries: Capillaries are single-layer vessels without valves.
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