To sum up, there are four points:
1, storage function
The stomach is a hollow cystic structure, like a big container, which can store food, water, medicine and so on.
2. Secretory function
There are glands secreting digestive juice on the gastric mucosa, so it also has secretory function;
3. Digestive function
Gastric juice contains digestive enzymes, which can digest food after being mixed with food;
In addition to the above functions, the stomach also has the functions of peristalsis and emptying. Food and gastric juice are conducted in the stomach and then enter the duodenum.
What are the factors that induce gastric cancer?
Mainly involves the following aspects:
1. Geographical factors: According to epidemiological investigation, gastric cancer mostly occurs in economically underdeveloped areas and northern areas. In the world, Asia has the highest incidence rate, especially in East Asia, Europe and North America.
2, living habits: if you often eat pickled, high-fat, high-calorie food, life is irregular, sleep late and get up late, it is also prone to stomach cancer;
3. Genetic factors: Studies show that the incidence of some patients is related to genetic factors;
4. Past history of stomach diseases: such as chronic superficial gastritis, or patients who have been found to have Helicobacter pylori infection in the past are also high risk factors for gastric cancer.
Why is it all gastric cancer, one died two years later, and the other lived to be 90 years old without recurrence?
Grandma Wang and Uncle Li in the community were diagnosed with gastric cancer almost at the same time, and both of them are actively treating it. However, after treatment, Uncle Li died almost two years ago. Grandma Wang is now over 90 years old and still has no recurrence. She is in good health.
Why on earth did this happen? The following reasons are analyzed:
1: Different stages of cancer
Most people may think that the treatment of the same cancer is the same, but this is not the case. There are stages of cancer, such as gastric cancer. Clinically, the staging of gastric cancer usually adopts the international TNM staging standard.
According to this standard, gastric cancer is usually divided into four stages: stage I, stage II, stage III and stage IV, and each stage can be divided into two sub-stages A and B according to the size and infiltration of the lesion.
Although Grandma Wang and Uncle Li suffer from the same kind of cancer, they are at different stages. Grandma Wang belongs to early gastric cancer, and Uncle Li belongs to late gastric cancer, and the cure rates at different stages are also very different.
Although both are active treatments, they are different in nature. If the prognosis of late treatment is not good, it is easy to relapse and metastasis, and the five-year survival rate will be lower. After reasonable treatment, the recurrence and metastasis rate of early gastric cancer will be lower and the survival time will naturally be longer. But it should be noted that not everyone is like this, but it varies from person to person.
2. Different mentality
Mentality has a great influence on the disease, but most people will ignore it.
First, let's look at Uncle Li. Uncle Li has been very concerned about his illness since he was diagnosed with it. He is worried, nervous and depressed every day. Even his family are wary of him, for fear that saying the wrong thing will hurt him. This also led to his bad mood and poor appetite. Soon, his condition became more serious, and cancer cells almost spread all over his body and died soon.
On the contrary, Grandma Wang is a little different. Although she has been diagnosed with gastric cancer, she always believes that "life and death are life, and fear is useless." It is better to live while you are alive. "
In her 60s, she was diagnosed with gastric cancer. After the treatment, she went home and began to be busy with all kinds of things, taking care of her grandchildren, doing housework every day and returning to her hometown to farm.
In her spare time, she plays cards and chats with old ladies and grandfathers, and sometimes she goes to square dance. Anyway, she looks cheerful every day, unlike a person with cancer. Now that she is 90 years old, she still wants to do everything by herself, just like when she was in her sixties.
Summary:
The same gastric cancer, the result is different. Did you learn anything?
For cancer, early detection and early intervention can greatly improve the chances of survival. Need to know the following early symptoms of gastric cancer:
The more common manifestations are as follows:
1, epigastric discomfort: you will feel full after eating a small amount;
2, stomach pain: usually complicated with stomach inflammation, ulcer malignant transformation will cause pain;
3, systemic symptoms: including anemia, fatigue, loss of appetite and so on. ;
4, weight loss: even as thin as more than ten kilograms, it may appear.
The symptoms of early gastric cancer are atypical, and it is difficult to find them through symptoms. If the above symptoms appear, it is recommended that the patient go to the hospital for a preliminary hematological examination. Gastroscopy may be required. Gastroscopy can find early gastric cancer and precancerous lesions, such as chronic atrophic gastritis and gastric ulcer.
If it is not well treated in the early stage, it is easy to get malignant transformation in the later stage. Therefore, early detection through gastroscope and control in the severe stage can prevent the occurrence of gastric cancer.