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. autoimmune disease: when the immune system targets the body’s own tissues (e.g., Hashimoto thyroiditis), it is classified as an autoimmune disease.
B. tissue rejection reaction: tissue rejection refers to immune attack against a transplanted (non-self) organ, not the person’s own tissue.
C. secondary immune response: a secondary immune response refers to the heightened response on re-exposure to an antigen (memory response), not self-destruction of an organ.
D. type IV hypersensitivity: some autoimmune diseases involve cell-mediated (type IV) mechanisms, but autoimmune disease is the broader correct classification; not all autoimmune thyroid destruction is exclusively type IV.
Correct Answer is C
Explanation
A. Pepsin or trypsin and peptidases: these are protein digesting enzymes, not primary fat digesters.
B. Amylase and disaccharidases: these digest carbohydrates, not fats.
C. Lipase: lipase (plus bile for emulsification) is required to chemically digest fats into fatty acids and glycerol.
D. Amylase and pepsin: amylase digests starch and pepsin digests proteins; neither is the principal fat-digesting enzyme.
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