This tube makes sure that each consumed part reaches your stomach but also that anything unwanted doesn’t get into the esophagus too early. This is done through the utilization of upper sphincter that remains closed for the most time and opens up when you swallow.
The lower sphincter is also present next to the stomach. Bilateral functionality is also applied here, as the sphincter allows the foods to reach stomach while protecting the esophagus from the stomach acid and food that has already undergone the process of partial digestion.
The mechanism is not perfect, however, as some people may occasionally experience the acid reflux, which is the result of the weakening of lower sphincter. Simply speaking, people get heartburn.
Many people think that getting food into the stomach is done through swallowing only, but that is not even remotely the case. When you swallow the food, you just send the signal for the upper sphincter to open. The rest of the process is far more complicated. As we have already mentioned, the esophagus is a muscular tube, and these muscles start working right after the food enters. Muscles start a chain contractions that push the food through the channel. It is a large pumping chain reaction that the person is unlikely to notice. But even if we feel nothing, the food is getting to the stomach through a living tube of muscles.
However, there are situations when an individual swallows a large portion of food or drinks that are hot or cold. The esophagus is most likely to experience a stress from unusual and unfitting conditions, thus providing uncomfortable sensations to the person.
While the biggest responsibility of esophagus is to move the substances from throat to stomach, there is also a reverse process of releasing the food from stomach backward, through the throat and mouth. Simple language defines this process as vomiting. It is a process of clearing the stomach from toxic and bad foods or saving it from other conditions, like alcohol or just too large quantities of food stored inside. Vomiting is also caused by issues that are non-related to food, like nausea or medications, among others. Esophagus makes vomiting possible through the same chain muscle contraction is a backward order that pushes the contents of the stomach out of it.
Keeping the esophagus healthy and productive is a crucial task for those trying to avoid the issues with it for as long as possible. There is no natural way to promote firmness that requires only one thing to do. Yet, there are a few methods to preserve the safety of your esophagus. Eat in small portions, avoid overly hot foods and beverages and restrain yourself from consuming things straight from the fridge or irritating the tube with ice cold water.