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2 Lungs
Exam 2
30
Anatomy
Graduate
10/04/2011

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Term
What is the origin of the internal thoracic arteries?
Definition
Subclavian artery
Term
What two areas or structures does it nourish? (it= internal thoracic arteries)
Definition
ntercostal spaces anteriorly via small intercostal branches and from the musculophrenic artery & the rectus abdominis via the superior epigastric artery
Term
What muscles holds the internal thoracic artery to the inside of the chest wall?
Definition
Transverse thoracic
Term
What is the sensory innervation to the pleura lining the:
a. thoracic cavity (costal part)
b. mediastinum
c. diaphragm
d. costal and diaphragmatic surface of lungs
e. oblique fissures
Definition
a. thoracic cavity (costal part) Intercostal nerves
b. mediastinum? Phrenic nerve
c. diaphragm? Phrenic (central part) and intercostal nerves (peripheral)
d. costal and diaphragmatic surface of lungs ?Visceral afferents
e. oblique fissures? Visceral afferents
Term
In general, by how many ribs higher does the inferior border of the lungs lie than the lowest extent of the parietal pleura?
Definition
2
Term
In the mid axillary line, in mid-inspiration, the lungs cross the rib, while the lower border of the parietal pleura crosses the rib.
Definition
n the mid axillary line, in mid-inspiration, the lungs cross the 8th rib, while the lower border of the parietal pleura crosses the 10th rib.
Term
To drain fluid from the pleural cavity the drain tube is commonly placed in the 8th or 9th intercostal space, mid-axillary line. The drain enters what recess?
Definition
Costodiaphragmatic recess
Term
What intercostal muscle layers does the intercostal neurovascular bundle travel between?
Definition
the intermost intercostal and internal intercostal muscles
Term
Developmentally, each lung has how many broncho-pulmonary segments?
Definition
10
Term
Anatomically the superior lobe of the lung lies mostly , while the inferior lobe lies mostly .
Definition
Anatomically the superior lobe of the lung lies mostly anterior, while the inferior lobe lies mostly posterior.
Term
What is the lingual?
Definition
Lower projection off the left upper lobe of lung.
Term
It (Q11) is synonymous with what part of the right lung?
Definition
Middle lobe
Term
The apex of each lung lies above the & to extend into the root of the neck.
Definition
The apex of each lung lies above the clavicle & 1st rib to extend into the root of the neck.
Term
What travels with the segmental bronchi through the middle of the broncho-pulmonary segment?
Definition
Segmental bronchi and artery.
Term
What is the result of sympathetic innervation to the lung?
Definition
Vasodilation of pulmonary and bronchial vessels, decreased mucus secretion & bronchodilation. The book differs from my answer in that it states that the sympathetics vasoconstricts the pulmonary and bronchial arteries. Supposedly this increases the pressure, but does not make sense to me so this particular point (vasodilation/vasoconstriction) will not be tested over.
Term
Lymphatic drainage of the lungs is collected by what set of lymph nodes?
Definition
Pulmonary to hilar
Term
Other than pulmonary vessels, what is the blood supply to the lungs and bronchi?
Definition
Bronchial arteries
Term
The lung and viscera pleura are insensitive to most stimuli, except for
Definition
The lung and viscera pleura are insensitive to somatic-type stimuli, except for Stretch or distension
Term
Which primary bronchus is more likely to receive a foreign body and why?
Definition
Right main bronchus, it is wider a straighter continuation of the trachea.
Term
What is another name for the right upper lobar bronchus and why?
Definition
Epiarterial, it lies above the right pulmonary artery.
Term
At the hilum of the lung, what pulmonary structure(s) generally lies most anterior? posterior? superior?
Definition
At the hilum of the lung, what pulmonary structure(s) generally lies most anterior? pulmonary veins posterior? bronchus, superior? Pulmonary artery
Term
At what vertebral body level and sternal level does the trachea bifurcate?
Definition
At the sternal angle, 4th thoracic vertebral body level.
Term
What is the upward pointing projection on the inside of the trachea at its bifurcation into primary bronchi?
Definition
carina
Term
What nerve runs anterior to the root of the lung?
Definition
phrenic nerve
Term
What nerve runs just posterior to the root of the lung?
Definition
Vagus
Term
What component of the autonomic nervous system is found on the lateral sides of the vertebral bodies in the thorax?
Definition
sympathetic chain and greater splanchnic nerve
Term
Where is the needle placed to avoid the intercostal neurovascular bundle while removing fluid from the costodiaphragmatic recess?
Definition
Through the middle of the space, using the superior border of the rib below as a guide.
Term
In a unilateral sucking or open pneumothorax, what does the mediastium and inflated lung do during inspiration?
Definition
They deviate to the side opposite the opening in the thoracic wall.
Term
In a unilateral tension pneumothoarx what does the mediastinum and inflated lung do upon expiration?
Definition
They remained deviated to the side opposite the opening in the thoracic wall.
Term
During inspiration describe the changes in shape and volume of the thoracic cavity.
Definition
All volumes increase, thus pressure decrease within the thoracic cavity. The ribcage elevates increasing the side-to-side diameter (bucket handle) and the anterior-posterior diameter (pump handle), while the diaphragm contracts and drops, increasing the superior-inferior diameter.
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