Which primary digestive process is facilitated by peristaltic contractions?

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Multiple Choice

Which primary digestive process is facilitated by peristaltic contractions?

Peristaltic contractions primarily propel contents along the digestive tract. These coordinated waves of smooth muscle move the bolus forward by constricting behind it and relaxing ahead, pushing material from the esophagus through the intestines. This propulsion is distinct from mucus secretion, which lubricates and protects the lining, from absorption, which is the uptake of nutrients through the mucosa, and from mechanical digestion like grinding or mixing, which break down material rather than move it forward.

Peristaltic contractions primarily propel contents along the digestive tract. These coordinated waves of smooth muscle move the bolus forward by constricting behind it and relaxing ahead, pushing material from the esophagus through the intestines. This propulsion is distinct from mucus secretion, which lubricates and protects the lining, from absorption, which is the uptake of nutrients through the mucosa, and from mechanical digestion like grinding or mixing, which break down material rather than move it forward.

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