Humans have two lungs, a right lung and a left lung. They are situated within the thoracic cavity of the chest. The right lung is bigger than the left, and the left lung shares space in the chest with the heart. The lungs together weigh approximately 1.3 kilograms (2.9 lb), and the right is heavier.

A typical lung in a human adult lung weighs about 2.2 pounds and is a little longer than 9 inches when you’re breathing normally, and about 10.5 inches when your lungs are completely expanded.

2025年3月16日 · Lung, in air-breathing vertebrates, either of the two large organs of respiration located in the chest cavity and responsible for adding oxygen to and removing carbon dioxide from the blood. The lungs are soft, light, spongy, elastic …

2023年8月16日 · Each lung has three surfaces, named after their location in the thorax. They are the mediastinal surface, diaphragmatic surface, and costal surface. Lungs are protected by pleura, a thin layer of tissue that provides cushion and a small amount of fluid to help the lungs breathe smoothly.

2024年4月20日 · Knowledge of lung anatomy is essential for understanding pulmonary disease pathophysiology, interpreting diagnostic tests, and performing surgical procedures. A deeper grasp of lung anatomy is essential for healthcare professionals diagnosing, treating, and managing respiratory conditions.

2024年11月8日 · Your right lung is divided into three LOBES, or sections. Each lobe is like a balloon filled with sponge-like tissue. Air moves in and out through one opening—a branch of the bronchial tube. Your left lung is divided into two LOBES.

2018年12月14日 · Here is how lungs work as the center of your breathing, the path a full breath takes in your body, and a 3-D model of lung anatomy. The lungs are the main part of your respiratory system.

2025年3月29日 · The left lung contains the cardiac notch, an indentation in the lung that surrounds the apex of the heart. Each lung consists of several distinct lobes . The right lung (the larger of the two) has 3 lobes --- the superior, middle, and inferior lobes.

2022年3月24日 · Healthy lifestyle habits, such as physical activity and not smoking, can help prevent lung injury and disease.

2023年11月21日 · Each lung is characterized by an apex, a base, costal, medial and diaphragmatic surfaces, and anterior, posterior and inferior borders. The organs are roughly conical in shape and are divided by fissures into lobes. The left lung has two lobes and one fissure; while the right lung has three lobes and two fissures.