Examlex
_______________ is the ability to perceive and respond to messages that are below the absolute threshold.
Duodenum
The first part of the small intestine immediately beyond the stomach, where most of the chemical digestion takes place.
Peristalsis
Wavelike contractions that propel substances along a tubular structure such as the esophagus.
Constipation
Changes in the frequency of bowel movements that leads to the formation of hard, dry fecal material.
Diarrhea
Excessively frequent and watery bowel movements.
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