Question

Which of following is true about normal changes to the GI system that occur as individuals...

Which of following is true about normal changes to the GI system that occur as individuals age?

decreased motility and increased liver blood flow and liver enzyme activity

decreased motility and  decreased liver blood flow and liver enzyme activity

increased motility and decreased liver blood flow

increased motility and increased liver enzyme activity
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Answer #1

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The correct option is b, on aging their is diminished gastric motility with increased stomach emptying time due to effect on gastric motor function, their is decrease in gastric contractile force and post - prandial peristalsis.colonic motility also get decline as it is regulated by contractions and relaxation cycle of smooth muscle. The liver blood flow and its volume also get decreases with age . Their is various changes in function , structure, and in hepatic sinusoidal endothelial cells in liver with advancing age and risk of liver disease is also increased. With age the turnovers of enzymes are lowered ,synthesis may be decreased, their is progressive decline in diffusion of protein of hepatocyte and thus their activities also get decreased.

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