🫁 Lungs – Deep Information
The Lungs: In-Depth Information 1. Introduction The lungs are two organs in the thoracic (chest) cavity that are spongy and filled with air. They are the primary respiratory system organs and are in charge of gas exchange: Injecting oxygen (O2) into the blood Carbon dioxide (CO2) eliminated from the body via the blood Cellular respiration, which provides energy (ATP) for body functions, relies on this process. --- 2. The Structure of the Lungs Inside the ribcage, on either side of the heart. Shape: A cone with an upward-pointing apex and a base that rests on the diaphragm. The right lung weighs less than 600 grams, while the left lung weighs less than 550 grams. Color: Pink at birth, but it can turn gray or black with age, pollution, or smoking. Lobes: Three lobes in the right lung: superior, middle, and inferior Left lung has two lobes: superior and inferior, which are smaller due to the heart taking up space (cardiac notch). Surfaces: The cotyledon's surface touches t...
