ATI RN
Questions About The Digestive System Questions
Question 1 of 5
What happens during the oral phase of digestion?
Correct Answer: A
Rationale: In the oral phase, food is mechanically broken down by chewing and mixed with saliva to begin starch digestion.
Question 2 of 5
Fungiform papillae appear as red spots on tongue surface because:
Correct Answer: A
Rationale: Fungiform papillae appear red due to their thin epithelium and rich vascularity in the connective tissue, not because of secondary papillae structure.
Question 3 of 5
Meissner's plexus is found in:
Correct Answer: B
Rationale: Meissner's plexus is located in the submucosa and regulates glandular secretion and local blood flow.
Question 4 of 5
During active HCL secretion parietal cell shows:
Correct Answer: B
Rationale: During active HCl secretion, parietal cells' intracellular canaliculi expand with numerous microvilli, and the tubulovesicular system decreases as it fuses with the canaliculi.
Question 5 of 5
Zymogen cells of fundic glands show the following EXCEPT:
Correct Answer: C
Rationale: Zymogen (chief) cells are located in the body and base of fundic glands, not the neck, and secrete pepsinogen and gastric lipase.