Lab Manual Cards Lung Stuff

Question 1

What is the relationship of the phrenic nerve and vagus nerve to hilum of the lung?

Answer 1

Phrenic - anterior to lung hilum

Vagus - posterior to lung hilum

Question 2

T or F: the lingula is prominent on both the left and right lungs

Answer 2

False, the lingula is a feature of only the left lung

Question 3

What is the relationship of the pulmonary artery to the bronchus on the right and left lungs?

Answer 3

Right: Ventral to the bronchus
Left: Superior to the bronchus

Question 4

What is special about the location of the esophagus in the posterior mediastinum?

Answer 4

it runs along the posterior aspect of the left atrium

Question 5

T or F: the esophagus is pressed directly to posterior aspect of the left atrium?

Answer 5

False, pericardium separates these two structures.

Question 6

What passes through the esophageal hiatus and what are the relationships between these structures?

Answer 6

LARP

Left vagus anterior to the esophagus
Right vagus posterior to the esophagus

Question 7

Where does the descending aorta begin and in what compartment?

Answer 7

Begins between the 4th and 5th vertebrae on the left side of the vertebral column in the posterior mediastinum

Question 8

What structures pass through the aortic hiatus?

Answer 8

aorta, azygos vein, thoracic duct

Question 9

How is venous drainage from the thoracic wall achieved?

Answer 9

by the azygos system of veins

Question 10

T or F: the azygos system of veins provides collateral flow between the superior and inferior vena cavae and offer an alternate route for return of blood to the heart

Answer 10

True

Question 11

What structure curves over the root of the right lung to drain into the SVC?

Answer 11

azygos arch

Question 12

Between the left and right posterior intercostal arteries, which would you expect to be longer and why?

Answer 12

The right ones because they exit from the aorta and have to go across the vertebral bodies

Question 13

How is collateral circulation between the aorta and subclavian arteries achieved?

Answer 13

Posterior intercostal arteries usually give rise to collateral arteries in the intercostal space where they connect with intercostal arteries and establish collateral circulation between the aorta and subclavian arteries via the internal thoracic.

Question 14

Which of the rami communicantes is most lateral?

Answer 14

White rami