Webb- Anatomy Flashcards

1
Q

The major fissures are not normally seen on a frontal radiograph but are often visible on ____

A

Lateral projection

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2
Q

True or false the major features originate posteriorly above the level of the aortic arch, near the level of the fifth thoracic vertebra and angle anteriorly and inferiorly nearly parallel to the sixth rib

A

True

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3
Q

____ the superior aspect of the left major fissure is a cephalad to the right in 75% of cases

A

Posteriorly

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4
Q

The minor fissure is visible in 50 to 80% of the cases appearing as a roughly horizontal line generally at or near the level of the anterior __ rib

A

Fourth

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5
Q

In the left lateral projection the right ribs being farther from the x-ray film or digital recording plate or relatively magnified by the diverging x-ray view

A

Big rib sign

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