Which of the following best describes how food moves through the digestive system, from mouth to anus?
Defecation
Emulsification
Peristalsis
Mastication
The Correct Answer is C
A. Defecation: This is the elimination of feces from the rectum, not the process of moving food through the GI tract.
B. Emulsification: This refers to breaking down fat into smaller droplets (done by bile), not the movement of food.
C. Peristalsis: Peristalsis is the rhythmic muscular contraction that propels food through the digestive tract.
D. Mastication: This is chewing, a mechanical process that occurs in the mouth before food enters the esophagus.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","C","E","F"]
Explanation
A. Regulate blood volume: Kidneys regulate fluid balance by adjusting urine output, influencing blood volume.
B. Excrete solid waste: Kidneys excrete liquid waste (urea, creatinine), not solid waste; the GI tract handles solids.
C. Role in regulation of blood pressure: Via the renin-angiotensin-aldosterone system (RAAS), kidneys influence vascular resistance and fluid volume.
D. Regulate body temperature: Thermoregulation is managed by the hypothalamus and skin, not the kidneys.
E. Regulate electrolyte content of blood: Kidneys regulate levels of sodium, potassium, calcium, and phosphate in the blood.
F. Role in RBC production: By releasing erythropoietin, kidneys stimulate RBC production in the bone marrow.
Correct Answer is C
Explanation
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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