Physiology Mcqs

The intrinsic factor for vitamins B12 absorption is produced in the______________?

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Liver
Stomach
Pancreas
Duodenum

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Physiology Mcqs

Stomach

Peristalsis involves coordinated contraction and relaxation______________?

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Above and below the food bolus
Lateral and medial to food bolus
Dorsal and ventral to food bolus
None of the above

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Physiology Mcqs

Above and below the food bolus

Which is not produced enteroendocrinally_____________?

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Intrinsic factor
Secretin
Motilin
GIP

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Physiology Mcqs

Intrinsic factor

The most important action of Secretin is to_____________?

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neutralize the acid from the stomach
increase secretion of bicarbonates by pancreas
decrease gastric secretion
Cause contraction of pyloric sphincter

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Physiology Mcqs

Cause contraction of pyloric sphincter

Trypsin is an activator of all of the following enzymes EXCEPT_______________?

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Chymotrypsinogen
Pepsinogen
Proelastase
Procolipase

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Physiology Mcqs

Pepsinogen

which of the following secretions has a very high pH________________?

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Gastric juice
Pancreatic juice
Bile in gall bladder
Saliva

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Physiology Mcqs

Pancreatic juice

Of the following is a reflex mediated by vagus ?

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Bile flow from liver
Pancreatic secretion of bicarbonate
Cephalic phase of gastric secretion
Mucous secretion from the Brunner’s glands

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Physiology Mcqs

Cephalic phase of gastric secretion

Secretin is secreted by_____________?

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Duodenum
Pancreas
Liver
Stomach

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Physiology Mcqs

Duodenum

Peristalsis in the gut is due to ______________?

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Preperistalitic intestinal secretion
Mecharical distension
Simultaneous action of circular and longitudinal muscles
Extrinsic nervous influence

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Physiology Mcqs

Mecharical distension

The final sugars in intestinal chyme are____________?

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Glucose & fructose
Ribose & mannose
Ribose & xylulos
Xylulose & fructose

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Physiology Mcqs

Glucose & fructose