Lungs and Bronchi Flashcards
What is the root of the lung and what are its contents
Formed by the bronchi, vessels and bronchi Contents: main bronchus pulmonary a and v bronchial a and v lymphatic vessels autonomic nerves
What is the Hilum
Depression in the medial surface of the lung
Allows for the entrance and exit of vessels and bronchi
Enclosed by pleura
How far does the apex of the lung extend superiorly
above R1 into base of neck
What are the right and left apices adjacent to respectively
Right: Trachea and esophagus
Left: Common carotid and left subclavian a
Why does the left mediastinal surface have a larger concavity
to accommodate the presence of the heart
Why does the diaphragmatic surface of the lung have a deeper concavity on the right
To accommodate the presence of the liver
How do the two lungs compare to one another in size and shape
Right: Larger, but shorter and wider
Left: Smaller, but longer and thinner
What are the names of the lobes and fissures of the right lung
Lobes: Superior, middle, and inferior
Fissures: Horizontal and oblique
What impressions are present on the right lung
heart esophagus superior vena cava brachiocephalic v arch of the azygos
What are the lobe and fissures of the left lung
Lobes: Superior and inferior
Fissure: oblique
What are the two major landmarks on the left lung
cardiac notch on anterior margin
lingula– formed from cardiac notch
What impressions can be found on the left lung
cardiac
arch of the aorta
esophagus
What is the Carina
internal ridge separating the opening of the left and right main bronchus
– Sensitive to the cough reflex
What vertebral level is the carina found at
T4
What are the characteristics of the Right Main Bronchus
Wider, shorter, and more vertical that the left
Branches into three 2˚ bronchi at the lung root
