alleryStart learning →Of every 500 mL of food residue that enters the cecum each day, how much becomes feces?
AAbout 250 mL of it
BAbout 150 mL of it
CAbout 350 mL of it
DAbout 450 mL of it
Answer & Solution
Correct answer: B. About 150 mL of it
1. The large intestine absorbs most of the water left in the residue that reaches it.
2. That absorption turns liquid chyme residue into semisolid feces.
3. Of every 500 mL entering the cecum each day, about 150 mL become feces.
4. So roughly seven tenths of the volume entering the cecum is reclaimed as water and salts.
_Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 23 "The Digestive System", section 23.5 The Small and Large Intestines_
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