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Lungs Anatomy | Shapes and Surfaces of the Lungs

  • Due to the elevated position of the image descriptionliver, the image descriptionright lung is slightly (= 5 cm) shorter than the image descriptionleft lung. The left lung, however, has less volume because some space is taken up by the heart.
Anterior View of the Body
Liver labeled on anterior view of body demonstrating lungs anatomy and the surrounding structures
Right lung labeled on anterior view of body demonstrating lungs anatomy and the surrounding structures
Lived labeled on anterior view of body demonstrating lungs anatomy and the surrounding structures
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  • Each lung is cone-shaped. The concave image descriptionbase rests on the diaphragm and the narrow image descriptionapex projects under the clavicle.
Anterior View of the Body
Base labeled on anterior view of body demonstrating lungs anatomy and the surrounding structures
Apex of the lung in an illustration demonstrating lungs anatomy and the surrounding structures
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  • A double-walled, fluid-filled sac called the image descriptionpleura envelops each lung and aids in the ventilation process.
Anterior View of the Body
Pleura labeled on anterior view of body
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  • The anterior, lateral, and posterior lung surfaces lie adjacent to the ribs and are thus often referred to as the image descriptioncostal surface.
Anterior View of the Body
Costal Surface labeled on anterior view of body
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  • Between the lungs is the image descriptionmediastinum. This large open space contains the heart, blood vessels, esophagus, nerves, trachea, and primary bronchi.
Lungs and mediastinum
Lungs and mediastinum labeled
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Lungs and mediastinum
Mediastinal surface shown
Lungs, mediastinum, and hilum labeled
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  • This is the region where the major blood vessels, bronchi, and nerves enter and leave the lung. Together, these structures form the root of the lung.
  • A prominent indentation called the image descriptioncardiac notch is also present along the mediastinal surface of the left lung. This indentation provides room for the apex of the heart.
Lungs and mediastinum
Lungs, mediastinum, and cardiac notch labeled
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An Overview of the Shapes and Surfaces of the Lungs:

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Test Yourself on Shapes and Surfaces of the Lungs with Answers Hidden
Test yourself while observing the Shapes and Surfaces of the Lungs
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