Which of the following best describes the chewing of food?
Absorption
Peristalsis
Regulation
Mechanical digestion
The Correct Answer is D
A. Absorption: Absorption refers to nutrients being taken into the bloodstream, mainly in the intestines.
B. Peristalsis: Peristalsis is the muscular movement of food through the digestive tract, not chewing.
C. Regulation: Regulation refers to control mechanisms in digestion but not to the act of chewing.
D. Mechanical digestion: Chewing breaks food into smaller pieces, which is mechanical digestion and prepares food for chemical digestion.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Storage: The urinary bladder’s primary function is to store urine until it is excreted during urination.
B. Filtration: Filtration occurs in the glomeruli of the kidneys, not in the bladder.
C. Reabsorption: Reabsorption happens in the renal tubules after filtration in the kidneys.
D. Buffering of H+: Buffering of hydrogen ions occurs in the kidneys and blood, not in the bladder.
Correct Answer is B
Explanation
A. pH 5.0: This is within normal range (urine pH typically ranges from 4.5 to 8.0).
B. Large amount of white blood cells (WBC): A high WBC count in urine indicates possible infection or inflammation, such as a urinary tract infection (UTI), and should be reported.
C. Amber color: Normal urine is straw to amber in color, depending on hydration status. This is not abnormal.
D. Occasional casts: Occasional hyaline casts may be seen in healthy individuals, especially after exercise. Persistent or abnormal casts (e.g., RBC casts) would be more concerning.
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