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Medical Science Mcqs 5254 MCQs [All-Courses]

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Medical Science is the study of human health, diseases, prevention, and treatment, focusing on diagnosis, patient care, and medical research to improve healthcare outcomes.

All Topics  5254

Peristalsis involves coordinated contraction and relaxation______________?
A Above and below the food bolus
B Lateral and medial to food bolus
C Dorsal and ventral to food bolus
D None of the above
Correct Answer: Above and below the food bolus
Which is not produced enteroendocrinally_____________?
A Intrinsic factor
B Secretin
C Motilin
D GIP
Correct Answer: Intrinsic factor
The most important action of Secretin is to_____________?
A neutralize the acid from the stomach
B increase secretion of bicarbonates by pancreas
C decrease gastric secretion
D Cause contraction of pyloric sphincter
Correct Answer: Cause contraction of pyloric sphincter
Trypsin is an activator of all of the following enzymes EXCEPT_______________?
A Chymotrypsinogen
B Pepsinogen
C Proelastase
D Procolipase
Correct Answer: Pepsinogen
which of the following secretions has a very high pH________________?
A Gastric juice
B Pancreatic juice
C Bile in gall bladder
D Saliva
Correct Answer: Pancreatic juice
Of the following is a reflex mediated by vagus ?
A Bile flow from liver
B Pancreatic secretion of bicarbonate
C Cephalic phase of gastric secretion
D Mucous secretion from the Brunner’s glands
Correct Answer: Cephalic phase of gastric secretion
Secretin is secreted by_____________?
A Duodenum
B Pancreas
C Liver
D Stomach
Correct Answer: Duodenum
Peristalsis in the gut is due to ______________?
A Preperistalitic intestinal secretion
B Mecharical distension
C Simultaneous action of circular and longitudinal muscles
D Extrinsic nervous influence
Correct Answer: Mecharical distension
The final sugars in intestinal chyme are____________?
A Glucose & fructose
B Ribose & mannose
C Ribose & xylulos
D Xylulose & fructose
Correct Answer: Glucose & fructose
Cephalic phase of gastric secretion is mediated by ______________?
A Neuro hormones
B Vagus
C Hormones
D Gastric
Correct Answer: Vagus
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