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Tracing the passage of food through the digestive system, which of the following is correct?

A.

Mouth, pharynx, large intestine, small intestine

B.

Mouth, esophagus, stomach, pharynx, small intestine

C.

Mouth, pharynx, esophagus, stomach, small intestine

D.

Mouth, pharynx, stomach, esophagus, anus

Answer and Explanation

The Correct Answer is C

A. Mouth, pharynx, large intestine, small intestine: The small intestine comes before the large intestine in the digestive tract.

B. Mouth, esophagus, stomach, pharynx, small intestine: The pharynx comes before the esophagus, not after.

C. Mouth, pharynx, esophagus, stomach, small intestine: This is the correct order of food movement through the upper GI tract.

D. Mouth, pharynx, stomach, esophagus, anus: The esophagus precedes the stomach, and the anus is the final structure after the large intestine.


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Related Questions

Correct Answer is D

Explanation

A. “This test will inform your provider if you are anemic.” Hemoglobin and hematocrit levels are used to assess anemia, not creatinine.

B. “This test will inform your provider if you have a thyroid disorder.” TSH and T3/T4 levels assess thyroid function, not creatinine.

C. “This test will inform your provider if you have an infection.” Infection is usually assessed by WBC count, CRP, or cultures, not creatinine.

D. “This test will inform your provider how your kidneys are functioning.” Serum creatinine is a reliable indicator of renal function; it reflects the kidney’s ability to clear waste.

Correct Answer is D

Explanation

A. Causes a deficiency of intrinsic factor and pernicious anemia: Intrinsic factor is produced in the stomach, not the liver. Its deficiency leads to pernicious anemia.

B. Causes lactose intolerance: Lactose intolerance is due to lactase deficiency in the small intestine.

C. Causes gastric reflux: Gastroesophageal reflux is typically due to lower esophageal sphincter dysfunction.

D. Causes blood drug levels to reach toxic levels: The liver metabolizes drugs. Impaired hepatic function reduces drug clearance, leading to accumulation and potential toxicity.

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