Webb- Anatomy

Question 1

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

Answer 1

Lateral projection

Question 2

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

Answer 2

True

Question 3

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

Answer 3

Posteriorly

Question 4

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

Answer 4

Fourth

Question 5

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

Answer 5

Big rib sign