As a simplified response, muscles in the tongue pushes food into the pharynx. However, it's a little more complicated than that.
This address has good info on your question: http://www.nature.com/gimo/contents/pt1/full/gimo1.html
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Peristalsis is the movement that pushes food along the esophagus. This process involves rhythmic muscular contractions that help propel food from the mouth to the stomach.
Perilstasis is the how the muscles contract to move food through the digestive system. Also gravity helps, I bet.
The wave-like muscle contraction that moves food along the esophagus is called peristalsis.
esophagus before entering the stomach for digestion. Movement within these structures is facilitated by peristalsis, a wave-like muscular contraction that pushes food along the digestive tract.
Food is moved along the esophagus through a process called peristalsis, which involves the contraction and relaxation of muscles in the esophagus. These muscle contractions create wave-like movements that push the food towards the stomach. Additionally, gravity helps to move food downward as you swallow.
The waves of contraction that move food to the stomach are called peristalsis. Peristalsis is a series of coordinated muscle contractions and relaxations that work to push food along the digestive tract.
Ribosome movement along the mRNA transcript is called translation. Translation is the process where the ribosome reads the mRNA sequence and synthesizes a corresponding protein by linking amino acids together in the correct order.
Peristalsis is a wave-like muscle contraction that moves food through the digestive tract. It helps to push food along the esophagus, stomach, and intestines, allowing for the digestion and absorption of nutrients.