Multiple choice

Ruminants masticate stomach content more leisurely by

  1. Peristalsis

  2. Retroperistalsis

  3. Both (1) and (2)

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Retroperistalsis is the reverse peristaltic movement that allows ruminants to regurgitate cud from the rumen back to the mouth for rechewing. Peristalsis moves food forward, while retroperistalsis enables the characteristic leisurely remastication of stomach contents that defines ruminant digestion.

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