What is the function of aldosterone?
It increases both Nat and K+ secretion.
It causes the urine to be more diluted.
It reduces Na* reabsorption and K+ secretion.
It increases Nat reabsorption and K+ secretion.
The Correct Answer is D
A. It increases both Na+ and K+ secretion: Aldosterone increases sodium (Na+) reabsorption and potassium (K+) secretion, but it does not increase the secretion of both ions.
B. It causes the urine to be more diluted. Aldosterone causes the urine to be more concentrated by increasing sodium reabsorption and potassium secretion.
C. It reduces Na+ reabsorption and K+ secretion. Aldosterone actually increases sodium reabsorption and potassium secretion, not reduces them.
D. It increases Na+ reabsorption and K+ secretion. Aldosterone promotes sodium reabsorption in the kidneys and increases potassium secretion, leading to more concentrated urine.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Chylomicrons are indeed secreted from the basal surface of the intestinal absorptive cells (enterocytes) and are absorbed into the lacteals, which are lymphatic vessels in the villi of the small intestine.
Correct Answer is B
Explanation
A. During pubarche: Pubarche refers to the onset of puberty, but oogenesis (the formation of oocytes) begins much earlier, during embryonic development.
B. During embryonic development: Oogenesis begins during embryonic development when the female fetus's ovaries form and start producing primary oocytes. These oocytes remain in a suspended state until puberty.
C. During thelarche: Thelarche is the onset of breast development during puberty, but oogenesis starts long before this, during embryonic development.
D. At birth: While primary oocytes are present at birth, the process of oogenesis actually begins during embryonic development, not at birth.
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