Lung - Anatomy.pptx

Presentation about anatomy of the lung

1. The Lungs By Adnan Hailat & Ahmad Hatem

2. The lungs are the primary organs of the respiratory system in humans and most other and located near the backbone on either side of the heart. Their function in the respiratory system is to extract oxygen from the air and transfer it into the bloodstream, and to release carbon dioxide from the bloodstream into the atmosphere

3. the lungs are made mostly of epithelial cells. Epithelial cells line the airways and make mucus, which lubricates and protects the lung. The lung also contains nerve cells, hormone-producing cells, blood cells, and structural or supporting cells

4. The left lung has 2 lobes, the superior lobe and the inferior lobe. And the right lung has 3 lobes, the superior lobe, the middle lobe and the inferior lobe. The left lung has fewer lobes to make room for the heart. In situ, the heart's apex is tilted slightly to the left, which makes the left lung smaller than the right Because of the lack of space.

5. lobules contains a bronchiole and affiliated branches, a thin wall, and clusters of alveoli

6. The bronchi are the large tubes that connect to your trachea (windpipe) and direct the air you breathe to your right and left lungs Bronchi are made up of cartilage and smooth muscle, and they are lined by mucous membranes. Cartilage provides structural strength, and the smooth muscle controls airway dimensions during respiration

7. The bronchi branches into small bronchioles. The bronchioles are part of the lower respiratory system. As they branch off from the bronchi, they become smaller and smaller, traversing the interior of each lung before ending at clusters of alveoli.

8. The alveoli are where the lungs and the blood exchange oxygen and carbon dioxide during the process of breathing in and breathing out

9. The process of inhaling and exhaling starts with movement of the diaphragm downward and movement of sternum outward. because of this movement space gets created in lungs and air gets sucked through nostrils

10. Alveoli is covered with a large number of blood vessels and due to diffusion only oxygen gas passes into the blood vessels and all other gases stay in the alveoli

11. Inside blood vessel, oxygen combines with hemoglobin present in the blood to form oxyhemoglobin In the cells oxygen is used For energy generation and carbon dioxide gets absorbed By blood and reaches to heart

12. From here heart pumps this blood to lungs where carbon dioxide gets diffused to alveoli And to get oxygen alveoli needs to be emptied and that where exhalation comes …

13. In this process sternum moves inwards and diagram moves upwards, these movements pressurize the gases out the lungs through nostrils

14. Thanks for listening!