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 A
Explanation
A. Mastication: Mechanical digestion involves physically breaking down food into smaller pieces, and mastication is a prime example of this.
B. Absorption: This is the process by which nutrients pass from the digestive system into the bloodstream, not a form of mechanical digestion.
C. Catabolism: Catabolism refers to chemical processes that break down molecules within the body, not mechanical digestion.
D. Anabolism: This refers to the synthesis of complex molecules from simpler ones, not related to the physical breakdown of food.
Correct Answer is C
Explanation
A. Aldosterone hormone: Aldosterone affects sodium and potassium reabsorption, increasing water retention indirectly, but it does not directly increase water permeability in the collecting ducts.
B. Atrial natriuretic peptide hormone: This hormone decreases blood volume by inhibiting sodium reabsorption, leading to more water excretion, not reabsorption.
C. Antidiuretic hormone (ADH): ADH increases the permeability of the collecting ducts to water, allowing more water to be reabsorbed into the bloodstream.
D. Parathyroid hormone: This hormone primarily regulates calcium levels, not water permeability.
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