Which process causes the movement of the food down the esophagus?
Peristalsis causes the movement of food down the oesophagus.
Muscles contract and relax radially symmetrically during peristalsis, moving in a wave-like manner.
The bolus, or ball of food, is propelled along the tract by the peristaltic wave, which is produced in the oesophagus by successive contractions of smooth muscle tissue. The movement includes
- Circular smooth muscle relaxation; 2) muscle contraction behind the bolus to stop it from moving backward; and 3) longitudinal contraction to move the bolus forward.
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The process that causes the movement of food down the esophagus is called peristalsis.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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