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| pressed against the rib cage |
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| slit through which the lung receives the root of the lung |
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| main bronchus, blood vessels, lymphatics, and nerves |
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| where the heart presses against the left lung |
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| deep groove that separates the superior and middle lobe of the right lung |
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| Separates the middle and the inferior of both lungs |
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| branching system of the air tubes that extends from the bronchus to the bronchioles |
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| wider and more vertical; more often aspirated; gives off superior, middle, and inferior lobar (secondary) bronchi |
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| slightly narrower and more horizontal; gives off superior and inferior lobar bronchi |
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| well-developed layer of smooth muscle which contracts or relaxes to constrict or dilate the airway |
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| portion of the lung ventilated by one bronchial |
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| the final branch of the conducting division; no goblet cells have cilia |
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| given off by terminal bronchioles; have alveoli budding off their walls |
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| division of respiratory bronchioles; have alveoli along their walls |
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| ending ove alveolar ducts; grape like clusters of alveoli arrayed around a central space |
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| the central space in which alveoli gather |
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Definition
Also known as the windpipe, it is a tube about 10-12.5 cm long (4-5 inches) and about 2.5 cm wide (1 inch). It extends from the lower edge of the larynx downward into the thoracic cavity, where it splits into right and left bronchi. Rings of cartilage keep the airway open.
Functions of the trachea:
to conduct air to and from the lungs;
to filter air;
to trap particles in mucus. |
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Definition
| are formed as the lower part of the trachea divides into two tubes. The primary portion enters the lungs at a region called the hilus. The primary branch forms a secondary branch, which then branches into smaller tertiary bronchi. |
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| is narrow and positioned more horizontally than the right bronchus. |
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| is shorter and wider than the left and extends downward in a more vertical direction. |
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| are smaller tube divisions of the bronchi. Its walls contain smooth muscle and no cartilage. This allows contraction and relaxation, thereby regulating air flow to the alveoli. |
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| These tiny air sacs function to exchange oxygen and carbon dioxide in the blood. Certain respiratory diseases cause a thickening of the alveoli walls, which restricts movement, causing breathing difficulties. |
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| the two lungs are separated from each other, then the hilar vessels are included, followed by an erosion or dilation of the volume, depending on the needs of the application. |
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| inflammation of pleura=pain |
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| dry pleural surfaces=pain |
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| Blood in pleural cavity resulting in lung collapse |
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| fluid in pleural cavity resulting in lunc collapse |
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