1, the heart is located in the thoracic cavity, above the diaphragm between the two lungs, about two-thirds of the left side of the midline. The heart as an inverted, slightly flattened cone before and after, like a peach.

The tip of the heart is bluntly rounded toward the left anterior bottom, and the anterior wall of the chest adjacent to its surface projection in the left anterior wall of the chest of the fifth intercostal space of the clavicle in the medial 0.5-1.0cm, so here can be seen or touched to the tip of the heart beat. The base of the heart is wide, with large blood vessels entering and exiting therefrom, and is oriented toward the right posterior superior, adjacent to the esophagus and other organs of the posterior mediastinum.

2. The liver is located in the right upper abdomen, hidden in the right side of the diaphragm and the deep surface of the ribs, most of the liver for the rib arches covered, only in the supra-abdominal area, the right rib arch between the exposed and direct contact with the anterior abdominal wall, the liver above the diaphragm and the anterior abdominal wall.

3. The stomach is located under the diaphragm and is connected to the esophagus above and the small intestine below.

Expanded:

p>It is generally accepted that in adults with a normal position of the upper border of the liver, if the liver is palpated under the costal arch, the hepatomegaly is most often pathologic. In young children, the position of the lower border of the liver is lower, and exposure to the right under the ribs is usually normal.

The position of the liver often changes with respiration, usually up to 2-3cm when breathing calmly, slightly down when standing and inhaling, and slightly up when lying on the back and exhaling, which is the reason why doctors often ask patients to breathe when palpating their livers.

The normal liver is reddish brown and soft. Adult liver weight equivalent to 2% of body weight. According to statistics, the weight of the adult liver in China, men for 1157-1447g, women for 1029-1379g, the heaviest up to 2000g or so, the liver's length, width and thickness of about 25.8cm, 15.2cm, 5.8cm.

Baidu Encyclopedia - Stomach

Baidu Encyclopedia - Heart

Baidu Encyclopedia - Liver