Nokea
The greater omentum does not participate in:
- A. secretion of enzymes
- B. support and cushioning of the viscera
- C. storage of lipids
- D. protection against the spread of infection
Correct Answer: A
Rationale: The greater omentum provides structural support, lipid storage, and protection against infection spread, but it does not secrete enzymes.
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Which of the following cells secrete pepsinogen?
- A. Parietal cells
- B. Alpha cells
- C. Chief cells
- D. Stem cells
Correct Answer: C
Rationale: Chief cells in the stomach are responsible for secreting pepsinogen, which is then activated to pepsin by the acidic environment created by HCl.
All about vermilion zone (free red margin) of lip is true EXCEPT:
- A. Covered by modified mucous membrane
- B. The epith covering has clear keratin superficial layer.
- C. Show deep & numerous dermal papilla
- D. Show NO skin appendages.
Correct Answer: A
Rationale: The vermilion zone is covered by modified skin, not a mucous membrane, though it lacks skin appendages and has a thin keratin layer.
All about human tongue is true EXCEPT:
- A. Anterior 2/3 of Dorsal surface is covered by Parakeratinized epith.
- B. Post. 1/3 contain lingual tonsils.
- C. Its ventral surface has projections called lingual papilla.
- D. Contain skeletal muscle fibers arranged in 3 directions.
Correct Answer: C
Rationale: The ventral surface of the tongue is smooth and covered by non-keratinized stratified squamous epithelium, not lingual papillae, which are on the dorsal surface.
One of the following is not true about the enteroendocrine cells:
- A. They are present in the stomach, small intestine and large intestine.
- B. They are of two types open and closed.
- C. They deliver their secretions only in the git lumen.
- D. They are also called argentaffine cells
Correct Answer: C
Rationale: Enteroendocrine cells release hormones into the bloodstream (endocrine function), not just the GIT lumen.
A client is to have a sigmoidoscopy to examine the sigmoid area of the gastrointestinal system. In teaching the client about the procedure, the nurse would explain that the purpose of the procedure is to examine the:
- A. Distal large intestine
- B. Stomach and small intestine
- C. Liver
- D. Pancreas
Correct Answer: A
Rationale: A sigmoidoscopy examines the sigmoid colon, part of the distal large intestine.