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1. Which of the following structures is primarily responsible for the
absorption of nutrients in the digestive system?
 A. Esophagus
 B. Stomach
 C. Small Intestine
 D. Large Intestine
 Answer: C. Small Intestine
 Rationale: The small intestine's extensive surface area, due to villi and
microvilli, allows for maximum absorption of nutrients.
2. A patient with a history of chronic alcohol abuse is most likely to have
damage in which gastrointestinal organ responsible for detoxification and
metabolism?
 A. Pancreas
 B. Liver
 C. Gallbladder
 D. Spleen
 Answer: B. Liver
 Rationale: The liver plays a key role in detoxifying substances,
including alcohol, and chronic abuse can lead to liver damage.
3. During a case of acute appendicitis, which anatomical landmark is
commonly used to locate the base of the appendix?
 A. McBurney's point
 B. Murphy's sign
 C. Traube's space
 D. Sister Mary Joseph's nodule
 Answer: A. McBurney's point
 Rationale: McBurney's point, located roughly one-third the distance
from the anterior superior iliac spine to the umbilicus, is used as a
reference for appendicitis pain.
4. In cases of gastroesophageal reflux disease (GERD), which anatomical
feature fails to function properly?
 A. Pyloric sphincter
 B. Cardiac sphincter
 C. Ileocecal valve
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