Lymph from the lower limbs drains into which duct?
Subclavian duct
Thoracic duct
Left lymphatic duct
Right lymphatic duct
The Correct Answer is B
A. Subclavian duct: There is no specific "subclavian duct" for lymph drainage; lymphatic fluid drains into the subclavian veins.
B. Thoracic duct: The thoracic duct drains lymph from the lower limbs and the left side of the body, returning it to the circulatory system at the junction of the left subclavian and internal jugular veins.
C. Left lymphatic duct: The thoracic duct is often referred to as the left lymphatic duct but is not limited to just left drainage.
D. Right lymphatic duct: The right lymphatic duct drains lymph from the right upper quadrant of the body but does not drain lymph from the lower limbs.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Gametes are only found in males: This statement is incorrect; gametes (sperm and eggs) are found in both males and females.
B. Gametes have double the chromosomes: This is incorrect; gametes are haploid (having half the number of chromosomes), while somatic cells are diploid (having two sets of chromosomes).
C. Gametes do not go through cell division: Gametes are produced through meiosis, which is a type of cell division.
D. Gametes go through meiosis: Gametes are produced through meiosis, a specialized form of cell division that reduces the chromosome number by half, allowing for sexual reproduction.
Correct Answer is B
Explanation
A. To increase the effectiveness of drugs and hormones in the blood: Tubular secretion helps in removing drugs and hormones, not increasing their effectiveness.
B. To remove excess quantities of substances from the blood: Tubular secretion is responsible for removing excess ions, waste products, and drugs from the blood and excreting them into the urine.
C. To filter out pathogens from the blood: Filtration primarily occurs at the glomerulus, not tubular secretion, and it does not focus on pathogens.
D. To remove 99% of the water from the blood: This is not the purpose of tubular secretion; water reabsorption primarily happens in the nephron’s other parts.
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