ATI RN
Anatomy And Physiology Digestive System Test Questions Questions
Question 1 of 5
All about vermilion zone (free red margin) of lip is true EXCEPT:
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.
Question 2 of 5
Reflux of gastric juice due to diminished the lower esophageal sphincter tone with symptoms as heart burn or atypical chest pain.
Correct Answer: C
Rationale: GERD is caused by a weakened lower esophageal sphincter, allowing gastric juice to reflux, causing heartburn.
Question 3 of 5
Surface mucous cells show the following EXCEPT:
Correct Answer: C
Rationale: Surface mucous cells secrete neutral to alkaline mucus, not acidic mucus, to protect the gastric mucosa.
Question 4 of 5
One of the following is not true about the enteroendocrine cells:
Correct Answer: C
Rationale: Enteroendocrine cells release hormones into the bloodstream (endocrine function), not just the GIT lumen.
Question 5 of 5
Submandibular gland following is true except:
Correct Answer: C
Rationale: The submandibular gland has prominent striated ducts, like other major salivary glands.