What are the main functions of the esophagus? What is the function of the esophagus?

The esophagus is part of the digestive tract, which is an organ belonging to the upper gastrointestinal tract that connects the pharynx and a long, narrow muscular duct between the pharynx and the stomach. Generally speaking, the esophagus is 25 cm long on average, and the esophagus is normally in a state of contraction, and it is only when we enter the food through the entrance of the esophagus that the esophagus begins to open. Moreover, the esophagus has the effect of grinding, which can pass the large pieces of food we swallow through the peristalsis of the esophageal muscles, and turn the food in the esophagus into small molecule substances, which is conducive to digestion and absorption by the body.

In addition, since the normal esophagus is closed, there are sphincters at both the upper and lower ends of the esophagus.

can also prevent reflux and prevent stomach acid in the stomach.

and bile and food reflux into the esophagus, so it still has a lot of functions. The esophagus is the area where it runs down the throat to the entrance to the stomach, the cardia, and is called the esophagus. The esophagus is posterior to the airway and is basically close to the posterior thoracic vertebrae.

of the front. The esophagus may be flat when not eating, but when you eat or swallow, the esophagus expands, allowing food to be squeezed from top to bottom into the stomach.

There are 3 strictures in the esophagus, the first is the part that connects to the throat, and the second is in the middle, that is, there is the tracheal ridge behind it, and the aortic arch.

The location is narrow, making it easy for foreign objects to stay in this position. Then there's the location of the cardia, which has the sphincter muscle, so it closes automatically when you're not eating, and it opens when you're eating. As a result, many pathologies can occur in the esophagus, which can be functional, such as achalasia.

Hiatal hernia causes the cardia to dilate too much, resulting in gastroesophageal reflux disease.

In addition, there are benign tumors, malignant tumors, inflammation and other causes of the esophagus.

The esophagus is a passage made up of muscles that connects the throat to the stomach. The esophagus itself does not have any digestive function, its main function is simply to help transport food into the stomach. When food enters the throat, the swallowing reflex is triggered, and the process of digestion is beyond the control of self-awareness.

This swallowing reflex action is mainly peristalsis to push food into the stomach. At the very end of the esophagus, where it meets the stomach, there is a sphincter muscle that ensures that stomach acid does not reflux into the esophagus.

The esophagus starts deep in the pharynx and descends from the front of the spine down the trachea and the back of the heart, and connects with the stomach from the right back through the diaphragm (the dividing line between the chest and abdomen) and is a muscular tube about 25 cm long.

The esophagus is always contracted, closing the internal organs and only expanding to about 3 square centimeters when food passes through. However, the esophagus does not dilate, and some parts of the esophagus have physiological strictures, i.e., the entrance to the esophagus, the intersection of the tracheal branches, and the three strictures that pass through the diaphragm. These sites were previously thought to be prone to esophageal cancer, but they are actually sites that are prone to getting stuck and swallowing food or foreign bodies.

In addition, after ingesting poison by mistake, it is also a site prone to inflammation, corrosion, and ulcers. It takes 3 to 5 seconds for swallowed food to pass through the esophagus and reach the stomach. The peristaltic movement of the esophagus and the mucus secreted by the esophageal glands help food pass through.

Functional esophageal diseases include: functional heartburn, functional chest pain of esophageal origin, functional dysphagia, and globus sensation. 1. What is functional heartburn?

All of the following conditions must be met:1Retrosternal burning discomfort or pain2

There is no evidence of acid reflux causing this symptom3Esophageal motility disorder without pathological basis is based on the presence of symptoms for at least 6 months before diagnosis, and the above diagnostic criteria have been met in the past 3 months. 2. What is esophageal chest pain?

All of the following conditions must be met:1Non-burning discomfort or pain behind the sternum2

There is no evidence of gastroesophageal reflux causing this symptom3Evidence of esophageal motility disorder without pathologic basis. Symptoms have appeared for at least 6 months before diagnosis, and the above diagnostic criteria have been met in the last 3 months.

3. What is functional dysphagia? All of the following conditions must be met:1

Solid and/or liquid food adhesion, retention, or abnormal sensation through the esophagus2There is no evidence of gastroesophageal reflux causing this symptom3Esophageal motility disorder without pathological basis is based on the presence of symptoms for at least 6 months before diagnosis, and the above diagnostic criteria have been met in the past 3 months.

4. What is globus hysteria? All of the following conditions must be met:1

Persistent or intermittent, non-painful pharyngeal choking or foreign body retention sensation2Sensations arise between meals3There is no evidence of gastroesophageal reflux causing this symptom4

Esophageal motility disorder without pathological basis is based on the presence of symptoms for at least 6 months before diagnosis, and the above diagnostic criteria have been met in the past 3 months.

Analysis: The trachea is the passage connecting the larynx and the lungs, the ventral side is composed of cartilage rings, and the dorsal side is composed of.

Striated muscle. The composition, with the vocal cords as the outlet and the downward branch called the bronchial opinion: the food sail swims the good way, also known as the esophagus, a part of the digestive tract of humans and animals, which is connected to the pharynx above and the stomach below, and is close to the ventral side of the spine, and has the function of transporting food lead.

There are two major functions: first, the passage of eating, connecting the stomach and mouth, and the only way for food to pass.

Second, it resists food reflux. Due to the special structure of the junction between the esophagus and the stomach, food does not flow back into the mouth after entering the stomach, and can be digested in the stomach all the time (with the exception of vomiting caused by some special circumstances). ）

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Its function is basically to convert large, water-insoluble and macromolecular substances into small particles and smaller molecules, digest them, and then pass the digested substances such as vitamins, inorganic salts and water through the mucous membrane of the digestive tract and enter the blood and lymphatic process