Nokea
What role does the stomach play in the maintenance of normal vitamin B12 levels?
- A. Produces intrinsic factor
- B. Absorbs vitamin B12
- C. Stores vitamin B12
- D. Converts vitamin B12
Correct Answer: A
Rationale: The stomach's parietal cells produce intrinsic factor, necessary for vitamin B12 absorption in the ileum.
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Hyperthermic means:
- A. Too cold
- B. Normal
- C. Too hot
- D. Stable
Correct Answer: C
Rationale: Hyperthermic refers to an abnormally high body temperature.
When teaching a group of senior citizens about nutrition, the nurse should include information about which of the following age-related changes in gastrointestinal functioning?
- A. Sensory changes that affect taste
- B. Problems with dentition
- C. Reduced gastric juice secretion
- D. Enhanced GI muscle tone
Correct Answer: C
Rationale: Reduced gastric juice secretion is a common age-related change affecting digestion.
What is the name of the tube that carries food from the mouth to the stomach?
- A. Trachea
- B. Oesophagus
- C. Duodenum
- D. Food tube
Correct Answer: B
Rationale: The esophagus is the muscular tube that transports food from the mouth to the stomach. The trachea is for air, the duodenum is part of the small intestine, and 'food tube' is not a scientific term.
Which structure is the uppermost part of the alimentary canal or gastrointestinal (GI) tract?
- A. Esophagus
- B. Liver
- C. Cecum
- D. Sigmoid
Correct Answer: A
Rationale: The alimentary canal begins at the mouth, followed by the esophagus, making the esophagus the uppermost structure listed.
About filiform papilla all true except:
- A. Secondary papillae extend from the primary papillae. Each one has a separate epithelial cap
- B. Found on the anterior two thirds of the tongue in oblique transverse rows
- C. Less numerous than fungiform papilla
- D. No taste buds in filiform papillae, but they contain nerve endings for touch.
Correct Answer: C
Rationale: Filiform papillae are the most numerous type on the tongue, not less numerous than fungiform papillae, and they lack taste buds.