Constipation results from
- A. very rapid peristalsis
- B. slow movement of contents through the large intestine with excess water absorption
- C. excess secretion of bile
- D. overactivity of the salivary glands
Explanation
The longer contents linger, the more water is reabsorbed and the harder and drier the faeces become. Fibre adds bulk that speeds transit, which is why roughage prevents it.
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