Nursing practice questions with comprehensive rationales
NurseDive Free Nursing Practice Question
Which of the following is an accessory organ of the digestive system?
A. stomach
stomach: the stomach is an organ of the alimentary canal (not an accessory organ).
B. pharynx
pharynx: the pharynx is part of the alimentary canal (passageway), not an accessory organ.
C. esophagus
esophagus: the esophagus is part of the alimentary canal (conduit), not accessory.
D. pancreas
pancreas: the pancreas is an accessory organ (secretes digestive enzymes and bicarbonate into the duodenum).
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Full Explanation
A. stomach: the stomach is an organ of the alimentary canal (not an accessory organ).
B. pharynx: the pharynx is part of the alimentary canal (passageway), not an accessory organ.
C. esophagus: the esophagus is part of the alimentary canal (conduit), not accessory.
D. pancreas: the pancreas is an accessory organ (secretes digestive enzymes and bicarbonate into the duodenum).
Similar Questions
The greater omentum is composed of which membrane?
A. pleural
pleural: the pleura lines the thoracic cavity and lungs, not the greater omentum.
B. pericardial
pericardial: the pericardium surrounds the heart, not the abdominal organs.
C. hiatal
hiatal: “hiatal” refers to the esophageal hiatus (an opening) and is not the membrane composing the omentum.
D. peritoneal
peritoneal: the greater omentum is a large fold of peritoneum (a double-layered peritoneal membrane) that hangs from the stomach.
Full Explanation
A. pleural: the pleura lines the thoracic cavity and lungs, not the greater omentum.
B. pericardial: the pericardium surrounds the heart, not the abdominal organs.
C. hiatal: “hiatal” refers to the esophageal hiatus (an opening) and is not the membrane composing the omentum.
D. peritoneal: the greater omentum is a large fold of peritoneum (a double-layered peritoneal membrane) that hangs from the stomach.
Which of the following is needed to digest fats?
A. Pepsin or trypsin and peptidases
Pepsin or trypsin and peptidases: these are protein digesting enzymes, not primary fat digesters.
B. Amylase and disaccharidases
Amylase and disaccharidases: these digest carbohydrates, not fats.
C. Lipase
Lipase: lipase (plus bile for emulsification) is required to chemically digest fats into fatty acids and glycerol.
D. Amylase and pepsin
Amylase and pepsin: amylase digests starch and pepsin digests proteins; neither is the principal fat-digesting enzyme.
Full Explanation
A. Pepsin or trypsin and peptidases: these are protein digesting enzymes, not primary fat digesters.
B. Amylase and disaccharidases: these digest carbohydrates, not fats.
C. Lipase: lipase (plus bile for emulsification) is required to chemically digest fats into fatty acids and glycerol.
D. Amylase and pepsin: amylase digests starch and pepsin digests proteins; neither is the principal fat-digesting enzyme.
This gastric juice component is produced by the chief cells of the gastric glands in an inactive form:
A. Intrinsic factor
Intrinsic factor: intrinsic factor is secreted by parietal cells, not produced as an inactive zymogen by chief cells.
B. mucus
mucus: mucus is secreted by mucous cells and is not an inactive enzyme precursor.
C. hydrochloric acid
hydrochloric acid: HCl is secreted by parietal cells as acid, not an inactive enzyme precursor from chief cells.
D. pepsinogen
pepsinogen: chief cells secrete pepsinogen, an inactive zymogen that is activated (to pepsin) by HCl.
Full Explanation
A. Intrinsic factor: intrinsic factor is secreted by parietal cells, not produced as an inactive zymogen by chief cells.
B. mucus: mucus is secreted by mucous cells and is not an inactive enzyme precursor.
C. hydrochloric acid: HCl is secreted by parietal cells as acid, not an inactive enzyme precursor from chief cells.
D. pepsinogen: chief cells secrete pepsinogen, an inactive zymogen that is activated (to pepsin) by HCl.