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The Correct Answer is {"dropdown-group-1":"B"}
A. Cephalic: The cephalic phase occurs before food enters the stomach, triggered by sight, smell, or thought of food, and stimulates gastric secretion via the vagus nerve.
B. Gastric: The gastric phase begins when food enters and stretches the stomach, triggering myenteric and vagovagal reflexes that stimulate acid and enzyme secretion.
C. Intestinal: The intestinal phase involves chyme entering the duodenum, which moderates gastric activity, mostly inhibitory.
D. Gastrointestinal: “Gastrointestinal” is a general term and not one of the specific phases of gastric secretion.
E. Mesenteric: “Mesenteric” refers to the mesentery (tissue supporting the intestines), not a phase of digestion.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Lysozyme: Lysozyme is present in saliva and has antibacterial properties, breaking down bacterial cell walls.
B. Urea and uric acid: These waste products are found in saliva in small amounts.
C. Electrolytes: Saliva contains electrolytes such as sodium, potassium, and bicarbonate.
D. Protease: Proteases (like pepsin or trypsin) are not present in saliva; they are found in the stomach and small intestine.
Correct Answer is A
Explanation
A. Decreased urine volume: ADH increases water reabsorption in the collecting ducts, leading to less water in the urine and decreased urine output.
B. Decreased urine molarity: ADH leads to more concentrated (higher molarity) urine, not less.
C. Increased urine volume: ADH reduces urine volume, not increases it.
D. Increased urine salinity: ADH affects water, not salt. Salinity may change indirectly, but this is not a direct effect.
E. Increased urine acidity: Urine acidity is influenced by hydrogen ion excretion, not directly by ADH.
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