In the small intestine during the fed state, the primary type of contraction is _____________ and is responsible for ____________.
A. Migrating myoelectrical complexes; moving chyme forward
B. Migrating myoelectrical complexes; mixing chyme
C. Peristalsis; mixing chyme
D. Segmentation; moving chyme forward
E. Segmentation; mixing chyme
F. Peristalsis; retropulsion
Answer: C. Peristalsis; mixing chyme
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The immediate source of additional ATP in muscle fibers is ____________________
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