Bronchus diagram

Location, Structure, and Anatomy. The bronchi are located in the thoracic cavity [3] along with the trachea and lungs. It originates from the lower end of the trachea or windpipe, where it divides or

bifurcates (at the point of carina) into the left and right bronchus [4]. A pulmonary alveolus (plural: alveoli, from Latin alveolus, "little cavity") is a hollow cavity found in the lung parenchyma, and is the basic unit of ventilation.Lung alveoli are the ends of the respiratory tree, branching from either alveolar sacs or alveolar ducts, which like alveoli are both sites of gas exchange with the blood as well. Alveoli are particular to mammalian lungs. The root of the lung is located at the hilum of each lung, just above the middle of the mediastinal surface and behind the cardiac impression of the lung. It is nearer to

the back (posterior border) than the front (anterior border). The root of the lung is connected by the structures that form it to the heart and the trachea.The rib cage is separated from the lung by a two-layered membranous Atelectasis: In this condition, an area of the lung or an entire lung collapses.Atelectasis may be due to airway obstruction, or compression of the lung. In the diagram above, an obstruction blocks the airway, causing the associated alveoli to

collapse and that area of the lung to shrink. 13. On the diagram below identify alveolar epithelium, capillary endothelium, alveoli, and red blood cells. Bracket the respiratory membrane. Demonstrating Lung Inflation in a Sheep Pluck In the trachea, or windpipe, there are tracheal rings, also known as tracheal cartilages.

Cartilage is strong but flexible tissue. The tracheal cartilages help support the trachea while still Figure 53-1 Diagram of the spectrum of congenital lung anomalies, including foregut and airway components. The lesions in yellow denote those most commonly encountered in this entity, whereas the lesions in white represent additional lesions that can be considered part of the spectrum. Trachea The trachea, also called the windpipe, is part of the passageway that supplies air to the lungs. Any prolonged blockage, even for a few minutes, can cause death. The trachea is about 4. What is the Trachea (Windpipe) Trachea is the medical name for the windpipe, the largest airway in the

respiratory system, about 4-5 inches in length and 1 inch in diameter that extends from the lower end of the larynx or voice box [1].An integral part of the human airway, the trachea, bronchi, bronchioles, and alveoli together make up the lower respiratory tract [2, 3]. 3 There are C-shaped rings of cartilage in the trachea and irregularly shaped blocks of cartilage in the bronchus to keep the large airways open and so reduce resistance to the fl ow of

air. Smooth muscle in the airways contracts and relaxes to adjust the diameter of the airway.

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