Location of the heart and lungs

The heart and lungs are two very important organs in the human body. The beating of the heart is closely related to people's vital signs. When there is a problem with the heart, it will also affect the functioning of other organs in the human body. The heart and lungs are located relatively close to each other, and the functions of these two organs are closely related. You can learn more about them. So where exactly are the heart and lungs located?

The heart is the most important organ in the vertebrate body. Its main function is to provide pressure for blood flow and circulate blood to all parts of the body. The human heart is located in the lower left middle of the chest cavity. It is about the size of a fist and weighs about 250 grams. Women's hearts are generally smaller and lighter than men's. The human heart is shaped like a peach and is located above the diaphragm, between the two lungs and slightly to the left. The heart is composed of myocardium and four chambers: left atrium, left ventricle, right atrium, and right ventricle. The left and right atria and the left and right ventricles are separated by septa, so they are not connected to each other. There are valves (atrioventricular valves) between the atria and ventricles. These valves prevent blood from flowing from the atria to the ventricles and not flowing back. The function of the heart is to promote blood flow, provide sufficient blood flow to organs and tissues to supply oxygen and various nutrients, and take away the end products of metabolism (such as carbon dioxide, inorganic salts, urea and uric acid, etc.) so that cells maintain normal metabolism and function.

The lungs are the human body's respiratory organs and important hematopoietic organs. They are located in the chest cavity, one on each side, covering the heart. The lungs are divided into lobes, two on the left and three on the right, for a total of five lobes. The lung meridian and lung system (referring to the trachea, bronchi, etc.) are connected to the throat and nose, so the throat is called the gateway of the lungs and the nose is the external orifice of the lungs. The lungs are a delicate organ, which is a summary of the physiological and pathological characteristics of the lungs. Physiologically, the lungs are clear, empty and delicate. They become full when you inhale and empty when you exhale. They are the canopy of the internal organs and the place where all the meridians meet. Pathologically, the six external evils enter the body through the skin or mouth and nose and often invade the lungs and cause disease. Pathological changes in other internal organs also often affect the lungs.

In addition, the heart is located in the chest cavity, above the diaphragm, between the two lungs, about two-thirds to the left of the midline. The heart is like an inverted, slightly flattened cone at the front and back, like a peach. The apex of the heart is blunt and round, facing the left front and lower side, close to the anterior chest wall. Its surface projection is 1-2 cm inside the midclavicular line in the fifth intercostal space of the left anterior chest wall, so the apex beat can be seen or felt here. The base of the heart is wide, with large blood vessels entering and exiting it, heading towards the upper right posterior side, adjacent to the esophagus and other organs in the posterior mediastinum.