MNT Upper GI UPDATED ACTUAL Exam
Questions and CORRECT Answers
Anatomy of Upper GI - CORRECT ANSWER - Mouth, pharynx, esophagus, and stomach
Basic functions of GI tract - CORRECT ANSWER - Motility, secretion, digestion, and
absorption
Oral cavity Function - CORRECT ANSWER - Mastication, saliva secretions, anf
formation of bolus
Esophagus - CORRECT ANSWER - Straight, hollow tube containing sphincter muscles at
either end
Composed of 4 layers of tissue and chief funtion is motility
Phases of Swallow - CORRECT ANSWER - Preparatory, transit, pharyngeal, esophageal
Dysphagia - CORRECT ANSWER - condition in which swallowing is difficult or painful
Gastric secretions producing cells - CORRECT ANSWER - mucous cells, chief cells,
parietal cells,a nd enterochromaffin cells (ECL)
3 phases of digestive secretions - CORRECT ANSWER - cephallic, gastric, and intestinal
Mucous cells - CORRECT ANSWER - Exocrine
Products: alkaline mucus
Stimuli for secretion: mechanical stimulation by contents
Function: protect mucosa against mechanical, pepsin, and acid injury
, Chief cells - CORRECT ANSWER - Exocrine
Product: pepsinogen
Stimuli for secretion: acetylcholine (ACh), gastrin
Function: begins protein digestion
Parietal cells - CORRECT ANSWER - Exocrine
Product: hydrochloric acid (HCl)
Stimuli for secretion: Acetylcholine, gastrin, histaminę
Function: activate pepsinogen, breaks down connective tissue, denatures proteins, kills
microoganisism, facilitates absorption of vit B12
Enterochromaffin-like (ECL) cells - CORRECT ANSWER - Endocrine
Product: Histamine
Stimuli for secretion: Acetylcholine, gastrin
Function: Stimulates parietal cells
G cells - CORRECT ANSWER - endocrine
Product: Gastrin
Stimuli for secretion: protein products, acetylcholine
Function: Stimulates pariteal cells and ECL cells
D cells - CORRECT ANSWER - Endocrine
Product: Somatostatin
Stimuli for secretion: Acid
Function: Inhibits pariteal, G, and ECL cells
Release of Gastric Juice - CORRECT ANSWER -
Questions and CORRECT Answers
Anatomy of Upper GI - CORRECT ANSWER - Mouth, pharynx, esophagus, and stomach
Basic functions of GI tract - CORRECT ANSWER - Motility, secretion, digestion, and
absorption
Oral cavity Function - CORRECT ANSWER - Mastication, saliva secretions, anf
formation of bolus
Esophagus - CORRECT ANSWER - Straight, hollow tube containing sphincter muscles at
either end
Composed of 4 layers of tissue and chief funtion is motility
Phases of Swallow - CORRECT ANSWER - Preparatory, transit, pharyngeal, esophageal
Dysphagia - CORRECT ANSWER - condition in which swallowing is difficult or painful
Gastric secretions producing cells - CORRECT ANSWER - mucous cells, chief cells,
parietal cells,a nd enterochromaffin cells (ECL)
3 phases of digestive secretions - CORRECT ANSWER - cephallic, gastric, and intestinal
Mucous cells - CORRECT ANSWER - Exocrine
Products: alkaline mucus
Stimuli for secretion: mechanical stimulation by contents
Function: protect mucosa against mechanical, pepsin, and acid injury
, Chief cells - CORRECT ANSWER - Exocrine
Product: pepsinogen
Stimuli for secretion: acetylcholine (ACh), gastrin
Function: begins protein digestion
Parietal cells - CORRECT ANSWER - Exocrine
Product: hydrochloric acid (HCl)
Stimuli for secretion: Acetylcholine, gastrin, histaminę
Function: activate pepsinogen, breaks down connective tissue, denatures proteins, kills
microoganisism, facilitates absorption of vit B12
Enterochromaffin-like (ECL) cells - CORRECT ANSWER - Endocrine
Product: Histamine
Stimuli for secretion: Acetylcholine, gastrin
Function: Stimulates parietal cells
G cells - CORRECT ANSWER - endocrine
Product: Gastrin
Stimuli for secretion: protein products, acetylcholine
Function: Stimulates pariteal cells and ECL cells
D cells - CORRECT ANSWER - Endocrine
Product: Somatostatin
Stimuli for secretion: Acid
Function: Inhibits pariteal, G, and ECL cells
Release of Gastric Juice - CORRECT ANSWER -
