Flashcards in Lungs, Pleura, Superior and Posterior Mediastinum Deck (72)
There are essentially 3 spaces in the chest. What are they?
Right and left pulmonary cavities and the mediastinum
The inferior thoracic aperture is closed by this structure
Two things enclosed in the pulmonary cavity
The lungs and the pleural sacs
The (blank) lines the chest wall, and adheres to the contours of the chest wall all the way to the diaphragm
Which lung has three lobes?
The right lung
What is the name of the fissure that divides the superior lobe from the middle lobe?
What is the name of the fissure that divides the inferior lobe from the superior lobe?
What kind of nerve is the phrenic?
Just a basic spinal nerve.
Do the phrenic nerves have sympathetic fibers?
Yes. They DO have sympathetic fibers on them, because the phrenic nerve goes to the diaphragm and the diaphragm has blood vessels, which need sympathetic innervation.
Which layer of pleura, visceral or parietal, can feel pain?
The phrenic nerve is sandwiched between which two structures?
Parietal pleura and fibrous pericardium of the pericardial sac
Where is the costal part of the parietal pleura?
Along the intercostal muscles (laterally)
This is the space where the lung does not fill the entire parietal pleura
If you peel the parietal pleural away from the fibrous layer of the pericardial sac, you will find the phrenic nerves, which are passing down from the spinal cord at what level?
C3-C5 ("C 3, 4, and 5 keep the person alive)
Are there somatomotor and sensory fibers on the phrenic nerves?
The lung does not expand all the way out to the midline border of the mediastina. What is the extra space called?
At the midclavicular line, how low do the lungs (visceral pleura) extend during quiet respiration? How about the parietal pleura?
6th rib; 8th rib
At the mid-axillary line, how low do the lungs (visceral pleura) extend during quiet respiration? How about the parietal pleura?
8th rib; 10th rib
At the paravertebral line (posteriorly), how low do the lungs (visceral pleura) extend during quiet respiration? How about the parietal pleura?
10th rib; 12th rib
Potential spaces which can fill with blood, air and water in pathological states. The spaces can be blunted or increased depending on the pathology.
Consists mainly of pulmonary arteries, bronchi and pulmonary veins, but anything entering or leaving the lung could also be considered part of this.
Root of the lung
On which side does the primary bronchus enter the hilum?
On which side do the secondary bronchi for upper and lower lobes enter the hilum?
Phrenic runs (blank) to the hilum, while the vagus runs (blank) to the hilum.
The superior vena cava branches to become the
Right and left brachiocephalic vein
On the right side, the pulmonary arteries lie (blank) to the bronchi and the pulmonary veins lie (blank) and (blank) to all other structures in the root
anterior; inferior and anterior
On the left side the pulmonary arteries lie (blank) to the bronchi and the pulmonary veins lie (blank) and (blank) to all other structures in the root
superior; inferior and anterior
the most anterior and most inferior major structures in the hilum of both lungs
Branches of the pulmonary vein
In the right (R) lung, the artery is (blank) to the airway. In the left (L) lung, the artery is (blank) to the airway