Where are cells with aldosterone receptors found?
Posterior pituitary
Proximal convoluted tubule
Distal convoluted tubule
Adrenal medulla
The Correct Answer is C
A. Posterior pituitary releases hormones such as ADH (antidiuretic hormone), but it does not have aldosterone receptors.
B. Proximal convoluted tubule is involved in reabsorption, but it does not have aldosterone receptors.
C. Distal convoluted tubule: Aldosterone receptors are found in the cells of the distal convoluted tubule. Aldosterone increases sodium reabsorption and potassium excretion in this part of the nephron, which helps regulate blood pressure and electrolyte balance.
D. Adrenal medulla produces catecholamines (e.g., adrenaline) but does not contain aldosterone receptors.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Metabolic water; cutaneous transpiration: Metabolic water refers to the water produced during metabolic processes within the body. However, most body water intake comes from drinking fluids, not metabolic water.
B. Drinking; cutaneous transpiration and expired air: While drinking is indeed the main source of water intake, the greatest loss of water from the body is through urine, not cutaneous transpiration and expired air.
C. Drinking; radiation: While drinking is the primary source of water intake, radiation is not a significant way the body loses water.
D. Drinking; urine: Drinking fluids is the main source of water intake, and urine excretion is the primary way the body loses water.
Correct Answer is B
Explanation
A. Renal filtrate refers to the fluid filtered from the blood in the glomerulus, which is the initial stage of urine formation. It does not immediately precede urine.
B. Tubular fluid is the filtrate as it passes through the nephron tubules, undergoing various processes like reabsorption and secretion. This fluid eventually becomes urine, after the final adjustments in the collecting duct.
C. Plasma is the liquid component of blood that is filtered by the glomerulus, but it is not the direct precursor to urine.
D. Glomerular filtrate is the fluid filtered out of the blood in the glomerulus and is the precursor to tubular fluid, not directly to urine.
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