Lesson 1,
Topic 2
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Normal lung appearance
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Normal lung is black on radiographs. Pulmonary vessels and bronchi are normal structures which are seen in normal physiologic states.
![Normal left lateral thoracic radiograph of a dog](http://obivet.com/wp-content/uploads/2021/05/normal-lung.jpg)
For a more in depth exploration of normal thoracic radiographs sign up for Obi’s free thoracic radiographic anatomy course.