The lungs are located in the thoracic cavity, on either side of the mediastinum, above the diaphragm. The lungs are the body’s respiratory organs and are located in the thoracic cavity, on both sides of the mediastinum, on the left and right. The lungs are divided into left and right sides. The right lung is relatively wider and shorter, while the left lung is narrower and longer. The left lung is divided by an oblique fissure into two lobes, the upper and lower lobes of the left lung. The right lung is divided into three lobes by the oblique and horizontal fissures: the upper lobe of the right lung, the middle lobe of the right lung, and the lower lobe of the right lung. The lungs are connected to the trachea, the pharynx, and the nasal cavity, and their physiologic roles are mainly ventilation and gas exchange functions. Ventilation function refers to the inhalation of fresh air into the body and the exhalation of exhaust gases from the lungs. Ventilation function refers to the gas exchange between alveoli and pulmonary capillaries, thus sending fresh oxygen into the body’s systemic organs. When chronic obstructive pulmonary disease, asthma, severe pneumonia and other diseases occur can lead to impaired lung ventilation, which can lead to hypoxia and other problems in the body, and if oxygen is not supplied in a timely and effective manner, it may result in serious consequences. If you have symptoms such as pulmonary discomfort, it is recommended to go to a regular hospital, consult a professional doctor, and cooperate with the doctor to complete the relevant examinations to avoid blind treatment.