The sigmoid is part of the:
Colon
Esophagus
Small intestine
Stomach
The Correct Answer is A
A. Colon: The sigmoid colon is the S-shaped terminal portion of the large intestine, connecting to the rectum.
B. Esophagus: The esophagus is part of the upper digestive tract, not the colon.
C. Small intestine: The sigmoid colon is not a part of the small intestine.
D. Stomach: The stomach is part of the upper GI tract and does not include the sigmoid colon.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Stores undigested pieces of food: The stomach, not the esophagus, is responsible for storing food temporarily.
B. Transports food from the pharynx to the stomach: The esophagus is a muscular tube that uses peristalsis to move food from the pharynx to the stomach.
C. Absorbs nutrients: Nutrient absorption occurs mainly in the small intestine, not the esophagus.
D. Breaks down proteins: Protein digestion begins in the stomach via pepsin, not in the esophagus.
Correct Answer is D
Explanation
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.
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