Lungs

Pulmones

Paired cone-shaped organs occupying the pleural cavities. The right lung has three lobes (superior, middle, inferior) and the left lung has two lobes (superior, inferior) with a cardiac notch. Each lobe is further divided into bronchopulmonary segments. The hilum on the medial surface receives the bronchi, pulmonary vessels, and nerves.

प्रकार Organ
शरीर तंत्र Respiratory
शरीर क्षेत्र Thorax
लैटिन नाम Pulmones
FMA ID 68877

कार्य

The primary organs of gas exchange, allowing oxygen to enter the blood and carbon dioxide to be expelled. The total surface area of the alveoli is approximately 70 square meters, facilitating efficient gas exchange.

नैदानिक महत्व

Lung cancer is the leading cause of cancer death. Pneumonia is inflammation of the alveoli. Chronic obstructive pulmonary disease (COPD) includes emphysema and chronic bronchitis. Pulmonary embolism is a life-threatening condition.

अक्सर पूछे जाने वाले प्रश्न

What is the function of the lungs?
The lungs are the primary organs of respiration. Their main function is gas exchange: oxygen from inhaled air diffuses into the bloodstream across the alveolar walls, while carbon dioxide from the blood diffuses into the alveoli and is exhaled. The lungs also play roles in pH regulation, filtering blood clots, and synthesizing certain hormones and surfactant.
How are the left and right lungs different?
The right lung has three lobes (upper, middle, lower) and is larger than the left lung, which has two lobes (upper, lower). The left lung is smaller because it accommodates the cardiac notch, the space occupied by the heart. The right lung is also shorter and wider due to the position of the liver beneath the right hemidiaphragm.
What is the total lung capacity?
Total lung capacity (TLC) in a healthy adult male is approximately 6 liters, with approximately 4.8 liters in females. Of this, tidal volume (normal resting breath) is about 500 mL. Vital capacity (maximum air moved in one breath) averages 4.8 liters in men and 3.1 liters in women. Residual volume (~1.2 L) remains in the lungs after maximum exhalation.

संबंधित संरचनाएं

muscle of larynx laryngeal muscle nasal-associated lymphoid tissue NALT nasal bone nasal bones nasal bridge nasal cartilage cartilage of nose nasal cavity respiratory epithelium nasal diverticulum false nostril nasal hair hair of nose

चिकित्सा अस्वीकरण

यह सामग्री केवल शैक्षिक और सूचनात्मक उद्देश्यों के लिए है। इसे पेशेवर चिकित्सा सलाह, निदान या उपचार के विकल्प के रूप में नहीं माना जाना चाहिए। किसी चिकित्सा स्थिति के बारे में आपके किसी भी प्रश्न के लिए हमेशा अपने चिकित्सक या अन्य योग्य स्वास्थ्य प्रदाता से सलाह लें। इस वेबसाइट पर पढ़ी गई किसी बात के कारण कभी भी पेशेवर चिकित्सा सलाह को नजरअंदाज न करें या इसे लेने में देरी न करें।

Educational Disclaimer

This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for medical decisions.

Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.