When people eat, food does not enter the trachea, and that s because something is at play

At the junction of the throat, trachea and esophagus, there is a cartilage that is like a closed switch, called the epiglottis cartilage, but when a person breathes, the epiglottis cartilage will pull towards the esophagus, blocking the esophagus and allowing the human body to complete the respiration. However, when a person eats, the human body swallows the food, and at this time the person stops breathing, and the epiglottis cartilage is pulled towards the trachea, blocking the trachea, so the food will not enter the trachea when the person eats. However, people usually say that they are choked because they gobble up food too quickly, or because they talk and laugh while eating, which causes gas exchange (breathing) during eating, so that food can easily fall into the trachea or get stuck in the throat, causing people to choke and cough incessantly. Beg.

Answer d The air inhaled through the nose and the chewed food pass through the throat and then go their own way, the air enters the trachea and the food enters the esophagus (the trachea is located in front of the esophagus), which is determined by the epiglottis cartilage below the throat When we inhale, the epiglottis cartilage is stationary, allowing air to enter the trachea; When we swallow, on the one hand, the soft palate extends backwards, preventing food from entering the trachea; On the other hand, the larynx rises and causes the epiglottis cartilage to cover the trachea like a door, allowing food to enter the esophagus It can be seen that at the moment of swallowing, our breathing is paused After swallowing, the soft jaw and laryngeal epiglottis cartilage quickly return to its original position, so breathing can continue as usual So when you talk and laugh casually during eating, if the epiglottis cartilage does not have time to cover when swallowing, it will cause food to enter the trachea and cause a violent cough

Therefore, d

Analysis: Hello, it is very dangerous for food to enter the trachea, and a foreign body in the trachea can cause severe choking and difficulty breathing. In severe cases, it can lead to choking.

If it enters the small bronchial tubes, atelectasis, pneumonia, etc. can occur. It can manifest as chest pain, high fever, dyspnea and other discomforts.

Suggestions: It is recommended that you go to a major hospital immediately for treatment, and you need to remove the foreign body in time under general anesthesia under fiber bronchoscopy. Systemic anti-inflammatory** is then given.

Be careful not to be careless during later eating. Be attentive. Avoid talking during meals.

The possibility of a tracheal foreign body can be avoided.

Air inhaled through the nose and chewed food pass through the pharynx, and then air enters the trachea through the larynx, and food enters the esophagus (the trachea is located in front of the esophagus), which is determined by the cartilage of the epiglottis When we inhale, the cartilage of the epiglottis is stationary, allowing air to enter the trachea; When we swallow, on the one hand, the soft palate extends backwards, preventing food from entering the nasal cavity; On the other hand, the rise of the larynx makes the epiglottis cartilage cover the larynx like a door, so as to prevent food from entering the trachea and allowing food to enter the esophagus It can be seen that at the moment of swallowing, our breathing is paused After swallowing, the soft palate and laryngoglottis cartilage quickly return to its original position, so breathing can be carried out as usual Because there is epiglottis cartilage, it is generally not choked But some people laugh while eating, and the epiglottis cartilage does not have time to cover it when swallowing, and the food enters the trachea, which will cause a violent cough

Therefore, choose B

Normal. (including newborns) can achieve good coordination between swallowing and spontaneous breathing. When eating and swallowing, the glottis automatically closes to prevent food from being aspirated into the trachea.

The trachea is closed when swallowing.

The most important "part" of the safety mechanism for closing the trachea is called the epiglottis, which is a piece of cartilage in the shape of a tongue that sits behind the base of the tongue and before the opening of the larynx.

Usually, the epiglottis is upturned, leaving the laryngeal cavity open. When swallowing, the larynx stretches forward and upward, against the base of the epiglottis, causing the epiglottis to move downward, closing the laryngeal cavity and blocking liquids and solid foods.

After swallowing, the larynx returns to its original position, the epiglottis opens again, and air can enter the trachea again.

Air inhaled through the nose and chewed food pass through the pharynx, and then air enters the trachea through the larynx, and food enters the esophagus (the trachea is located in front of the esophagus), which is determined by the cartilage of the epiglottis When we inhale, the cartilage of the epiglottis is stationary, allowing air to enter the trachea; When we swallow, on the one hand, the soft palate extends backwards, preventing food from entering the nasal cavity; On the other hand, the larynx rises so that the epiglottis cartilage is like a door, covering the larynx to prevent food from entering the trachea and allowing food to enter the esophagus It can be seen that at the moment of swallowing, our breathing is paused After swallowing, the soft palate and laryngeal epiglottis cartilage quickly return to its original position, so breathing can continue as usual Because there is epiglottis cartilage, it is generally not choked But some people laugh while eating, and the epiglottis cartilage does not have time to cover when swallowing, and the food enters the trachea, which will cause a violent cough, so when swallowing, The reason why food generally does not enter the trachea is that the epiglottis cartilage covers the entrance to the larynx

Therefore, c

Air inhaled through the nose and chewed food pass through the throat, and then go their own way, the air enters the trachea and the food enters the esophagus (the trachea is located in front of the esophagus), which is determined by the epiglottis cartilage below the throat When we inhale, the epiglottis cartilage is stationary, allowing air to enter the trachea; When we swallow, on the one hand, the soft palate extends backwards, preventing food from entering the trachea; On the other hand, the larynx rises, causing the epiglottis cartilage to cover the tracheal larynx like a door, allowing food to enter the esophagus It can be seen that at the moment of swallowing, our breathing is paused After swallowing, the soft jaw and laryngeal epiglottis cartilage quickly return to its original position, so breathing can continue as usual So when laughing while eating, if the epiglottis cartilage does not have time to cover when swallowing, it will cause food to enter the trachea and cause a violent cough

Therefore, c