ABDOMINAL
GASTROINTESTINAL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Of mix.
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Of segmentation.
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Of transport.
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All of the above.
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Detailed explanation-1: -Food moves through your GI tract by a process called peristalsis. The large, hollow organs of your GI tract contain a layer of muscle that enables their walls to move. The movement pushes food and liquid through your GI tract and mixes the contents within each organ.
Detailed explanation-2: -Peristalsis and segmentation differ not only because of the movement type but in their functions. Segmentation aids mechanical digestion, whereas peristalsis aids intestinal motility. Both segmentation and peristalsis are carried out by the smooth muscles of the small intestine.
Detailed explanation-3: -Figure 2: The digestive processes are ingestion, propulsion, mechanical digestion, chemical digestion, absorption, and defecation. Some chemical digestion occurs in the mouth. Some absorption can occur in the mouth and stomach, for example, alcohol and aspirin.
Detailed explanation-4: -Two types of movement (motility) occur in the stomach: peristalsis and segmentation (mixing) The contractions occur about every 20 seconds and proceed from the body of the stomach toward the pyloric sphincter. About 20% of the contractions in the stomach are peristaltic waves. More items