What is the respiratory system? Your respiratory system is the organs and structures in your body that allow you to breathe. It includes your lungs, nose, mouth and the tubelike structures that connect them. You also have muscles and blood vessels that support your respiratory system, and ribs to protect it.

2022年3月24日 · Your lungs are on each side of your heart, inside your chest cavity. They are the main organs of the respiratory system. The right lung is divided into three lobes (sections), and the left lung is divided into two lobes. Your left lung is slightly smaller than your right lung, since your heart takes up some space on the left side.

In mammals and most other tetrapods, two lungs are located near the backbone on either side of the heart. Their function in the respiratory system is to extract oxygen from the atmosphere and transfer it into the bloodstream, and to release carbon dioxide from the bloodstream into the atmosphere, in a process of gas exchange.

2025年1月18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 …

2024年11月8日 · Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe. The respiratory system’s main job is to transport oxygen and remove extra carbon dioxide.

2022年8月15日 · Your respiratory system prevents harmful substances from entering your lungs by using: Small hairs in your nose that act as an air-cleaning system and help filter out large particles. Mucus produced in your trachea and bronchial tubes to keep air passages moist and help catch dust, bacteria and other substances.

2024年1月8日 · What Is the Respiratory System? The respiratory system is the organs and other parts of your body involved in breathing, when you exchange oxygen and carbon dioxide. All the cells in your body...

2025年1月25日 · Explore the anatomy and vital role of the lungs with Innerbody's interactive 3D model. The human lungs are a pair of large, spongy organs optimized for gas exchange between our blood and the air. Our bodies require oxygen in order to survive.

The respiratory system transports oxygen from the air we breathe, through a system of tubes, into our lungs and then diffuses it into the bloodstream, whilst carbon dioxide...

2022年3月24日 · Healthy lifestyle habits, such as physical activity and not smoking, can help prevent lung injury and disease. Last updated on March 24, 2022. Learn about your lungs and respiratory system, what happens when you breathe in …