What happens when food reaches the stomach?
Nothing, it's just a pass through to the next structure
Gastric juices mix with the food and the stomach muscles squeeze it
The food moves quickly into the small intestine
The food is completely digested and is absorbed by tiny blood vessels in the walls of the stomach
The Correct Answer is B
A. Nothing, it's just a pass through to the next structure: The stomach plays a critical role in digestion through mixing and secretion of gastric juices.
B. Gastric juices mix with the food and the stomach muscles squeeze it: This process forms chyme through mechanical (squeezing) and chemical (acid/enzymes) digestion.
C. The food moves quickly into the small intestine: Food stays in the stomach for a period of time for processing before gradually passing into the small intestine.
D. The food is completely digested and is absorbed by tiny blood vessels in the walls of the stomach: Most digestion and nutrient absorption occur in the small intestine, not the stomach.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Gallbladder: The gallbladder stores bile, but it is not a major recipient of portal vein blood.
B. Duodenum: The duodenum receives chyme from the stomach, but not blood from the portal vein.
C. Liver: The portal vein carries nutrient-rich blood from the GI tract (including intestines and stomach) directly to the liver for metabolism and detoxification.
D. Pancreas: Although nearby, the pancreas is not the primary organ supplied by the portal vein for nutrient processing.
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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