1. The stomach
is the digestive organ of the human body, located under the diaphragm, connected to the esophagus above and the small intestine below. The upper opening of the stomach is the cardia, and the lower opening is the pylorus. The stomach is also called the epigastrium (guǎn tube, also pronounced wǎn bowl).
2. Liver
The liver is the largest organ in the human body. It is located in the abdomen of the human body, under the right diaphragm, in front of the gallbladder and in front of the right kidney. , above the stomach. The liver is the largest digestive gland in the human digestive system. The average adult liver weighs 1.5 kilograms (about 1-2.5 kilograms; another said 1-1.6 kilograms). It is a reddish-brown V-shaped organ.
3. Lungs
The lungs are the respiratory organs of the human body. They are located in the chest, one on the left and one on the left, covering the heart. The lungs are divided into lobes, two on the left, three on the right, and five at the bottom. Lung Meridian The lung system (referring to the trachea, bronchi, etc.) is connected to the throat and nose, so the throat is called the portal of the lungs, and the nose is the outer orifice of the lungs.
4. Kidney
It is an organ of vertebrates and is part of the urinary system. It is responsible for filtering impurities in the blood, maintaining the balance of body fluids and electrolytes, and finally producing urine. The urethra is excreted from the body; it also has endocrine function to regulate blood pressure. In the human body, a normal adult has two kidneys, located behind both sides of the waist.
5. Spleen
The spleen is an important lymphoid organ. It is located at the upper left side of the abdominal cavity. It is flat and oval in shape, dark red, soft and brittle. It can easily rupture when it is severely hit locally. Bleeding. The spleen is located between the fundus of the stomach and the diaphragm in the left quarter rib area, just opposite the 9th to 11th ribs, and its long axis is consistent with the 10th rib.
Extended information:
From the perspective of collective metabolism, the liver has the following functions:
1. Vitamin metabolism. The synthesis and storage of multiple vitamins, such as A, B, C, D and K, are closely related to the liver. When the liver is obviously damaged, vitamin A deficiency may lead to night blindness or dry skin syndrome.
2. Hormone metabolism. The liver is involved in the inactivation of hormones. Sex hormone imbalance may occur when liver function is long-term damaged, including loss of sexual desire, sparse or falling armpit and pubic hair, impotence, testicular atrophy, male breast development, irregular menstruation in women, liver palms and spider nevi, etc.
3. The liver participates in the water metabolism process through the action of nerves and body fluids, counteracting the action of antidiuretic hormone in the posterior lobe of the pituitary gland to maintain normal urine output. The liver also plays a role in regulating acid-base balance and mineral metabolism, and is an important heat energy supply organ.
Reference materials: Baidu Encyclopedia_Stomach? Baidu Encyclopedia_Spleen? Baidu Encyclopedia_Kidney Encyclopedia_Liver Baidu Encyclopedia_Lung